Finding the Fourth Proportional to 71,545.68, 107,306.28 and 18,960.48
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Solution
The fourth proportional to 71,545.68, 107,306.28 and 18,960.48 is: 28,437.48
Step by Step Solution
- Step 1: Write the proportion equation
71,545.68 : 107,306.28 = 18,960.48 : x - Step 2: Convert to fraction form
71,545.68/107,306.28 = 18,960.48/x - Step 3: Cross multiply
71,545.68x = 107,306.28 × 18,960.48 - Step 4: Simplify right side
71,545.68x = 2,034,578,575.81 - Step 5: Solve for x
x = 2,034,578,575.81/71,545.68 - Step 6: Final answer
x = 28,437.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.