Finding the Fourth Proportional to 89,909.92, 124,117.68 and 52,176.88
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Solution
The fourth proportional to 89,909.92, 124,117.68 and 52,176.88 is: 72,028.46
Step by Step Solution
- Step 1: Write the proportion equation
89,909.92 : 124,117.68 = 52,176.88 : x - Step 2: Convert to fraction form
89,909.92/124,117.68 = 52,176.88/x - Step 3: Cross multiply
89,909.92x = 124,117.68 × 52,176.88 - Step 4: Simplify right side
89,909.92x = 6,476,073,295.24 - Step 5: Solve for x
x = 6,476,073,295.24/89,909.92 - Step 6: Final answer
x = 72,028.46
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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.