Finding the Fourth Proportional to 84,545.36, 126,864.71 and 47,126.50
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Solution
The fourth proportional to 84,545.36, 126,864.71 and 47,126.50 is: 70,715.76
Step by Step Solution
- Step 1: Write the proportion equation
84,545.36 : 126,864.71 = 47,126.50 : x - Step 2: Convert to fraction form
84,545.36/126,864.71 = 47,126.50/x - Step 3: Cross multiply
84,545.36x = 126,864.71 × 47,126.50 - Step 4: Simplify right side
84,545.36x = 5,978,688,885.86 - Step 5: Solve for x
x = 5,978,688,885.86/84,545.36 - Step 6: Final answer
x = 70,715.76
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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.