Finding the Fourth Proportional to 84,095.90, 126,143.84 and 39,727.13
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Solution
The fourth proportional to 84,095.90, 126,143.84 and 39,727.13 is: 59,590.70
Step by Step Solution
- Step 1: Write the proportion equation
84,095.90 : 126,143.84 = 39,727.13 : x - Step 2: Convert to fraction form
84,095.90/126,143.84 = 39,727.13/x - Step 3: Cross multiply
84,095.90x = 126,143.84 × 39,727.13 - Step 4: Simplify right side
84,095.90x = 5,011,333,319.18 - Step 5: Solve for x
x = 5,011,333,319.18/84,095.90 - Step 6: Final answer
x = 59,590.70
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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.