Finding the Fourth Proportional to 87,926.92, 121,381.20 and 50,193.88
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Solution
The fourth proportional to 87,926.92, 121,381.20 and 50,193.88 is: 69,291.56
Step by Step Solution
- Step 1: Write the proportion equation
87,926.92 : 121,381.20 = 50,193.88 : x - Step 2: Convert to fraction form
87,926.92/121,381.20 = 50,193.88/x - Step 3: Cross multiply
87,926.92x = 121,381.20 × 50,193.88 - Step 4: Simplify right side
87,926.92x = 6,092,593,387.06 - Step 5: Solve for x
x = 6,092,593,387.06/87,926.92 - Step 6: Final answer
x = 69,291.56
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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.