Hello can someone help me solve this and understand how to solve it please.

Question

The maximum weight that a rectangular beam can support varies jointly as its width and the square of its height and inversely as its length. If a beam

one fourth14

foot​ wide,

one half12

foot​ high, and

1414

feet long can support

1010

​tons, find how much a similar beam can support if the beam is

two thirds23

foot​ wide,

one fourth14

foot​ high, and

1818

feet long.  

Answer 1