Finding the Fourth Proportional to 91,424.64, 126,207.36 and 53,701.92
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Solution
The fourth proportional to 91,424.64, 126,207.36 and 53,701.92 is: 74,132.94
Step by Step Solution
- Step 1: Write the proportion equation
91,424.64 : 126,207.36 = 53,701.92 : x - Step 2: Convert to fraction form
91,424.64/126,207.36 = 53,701.92/x - Step 3: Cross multiply
91,424.64x = 126,207.36 × 53,701.92 - Step 4: Simplify right side
91,424.64x = 6,777,577,550.13 - Step 5: Solve for x
x = 6,777,577,550.13/91,424.64 - Step 6: Final answer
x = 74,132.94
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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.