Finding the Fourth Proportional to 90,493.97, 124,896.68 and 50,220.68
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Solution
The fourth proportional to 90,493.97, 124,896.68 and 50,220.68 is: 69,312.85
Step by Step Solution
- Step 1: Write the proportion equation
90,493.97 : 124,896.68 = 50,220.68 : x - Step 2: Convert to fraction form
90,493.97/124,896.68 = 50,220.68/x - Step 3: Cross multiply
90,493.97x = 124,896.68 × 50,220.68 - Step 4: Simplify right side
90,493.97x = 6,272,395,323.76 - Step 5: Solve for x
x = 6,272,395,323.76/90,493.97 - Step 6: Final answer
x = 69,312.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.