<PRE><B>Question 924471</B>
{{{4*pi*r^2=5000/7.4805}}}
{{{r^2=5000/(4*pi*7.4805)}}}
{{{r=sqrt(5000/(4pi*7.4805))}}}


You can give the resulting calculation result for what radius equates to the 5000 gallon limit that the owner wants.


{{{r=7.29}}} feet


The volume if radius is 7.5 feet:
{{{4*pi*7.5^2(7.48)=5287}}} gallons.  This is more than 5000.


Use a value closer to the 5000 gallon limit which the owner wants, and use the 7.39 foot radius.  This is 7 feet 4 inches (2/3) of an inch fraction.


1 gallon is 7.4805 cubic feet.  (Google used)</PRE>