352 VALUATION, DEPRECIATION AND THE RATE-BASE 
more lines from the table the sum of whose years is equal to » 
and multiply the values found in the interest column on these 
lines. 
Example. — What is the present value of $1 at 5 per cent due 
in 36 years? 
Present value of $1 due in 30 years at 5 per cent = 0.231377. 
Present value of $1 due in 6 years at 5 per cent = 0.746215. 
0.231377 X 0.746215 = $0.172657, the required present value.