In: Finance
Sam retires today at the age of 61 and invests his life savings into an account that is guaranteed to earn 3.83% per year. Sam expects to live to the age of 92, withdraw $0.103mln from the account at the end of each year, and leave his heirs $1.726mln (this amount will be the account balance at the time of his death). How much is Sam putting in the account today, in $ million? Round to the nearest $0.001 million. E.g., if your answer is $1,234,758, record it as 1.235.
No of years in consideration =(92-61)=31 | |||
We have to find the PV of Annuity and PV of | |||
$1.726 M as on today. | |||
Formula for present value of an anuuity = PV= A [ {(1+k)n-1}/k(1+k)n] | |||
PV = Present value of Loan = | |||
A = periodical Yearly payment =$0.103 M | |||
k=interest rate=3.83% per year | |||
n=periods=31 years | |||
PV =0.103*[(1.0383^31-1)/(3.83%)*(1.0383)^31] | |||
PV =$1.8505 M | |||
b | So PV of Annuity =$1.8505 Million | ||
Now let us find the PV of $1.726 Million which | |||
will accumulate after 31 years from today. | |||
Interest rate =3.83% pa | |||
PV =$1.726 Million/1.0383^31 | |||
a | PV =$1.726 Million/3.2063319 = | $ 0.5383 | Million |
So PV of the Annuity+PV of Account Balance=a+b= | $ 2.38880 | Million |