Finding the Fourth Proportional to 83,752.74, 125,613.61 and 38,149.68
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Solution
The fourth proportional to 83,752.74, 125,613.61 and 38,149.68 is: 57,217.46
Step by Step Solution
- Step 1: Write the proportion equation
83,752.74 : 125,613.61 = 38,149.68 : x - Step 2: Convert to fraction form
83,752.74/125,613.61 = 38,149.68/x - Step 3: Cross multiply
83,752.74x = 125,613.61 × 38,149.68 - Step 4: Simplify right side
83,752.74x = 4,792,119,025.14 - Step 5: Solve for x
x = 4,792,119,025.14/83,752.74 - Step 6: Final answer
x = 57,217.46
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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.