Home / 87,251.52-130,872.07-31,088.65

Finding the Fourth Proportional to 87,251.52, 130,872.07 and 31,088.65

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Solution

The fourth proportional to 87,251.52, 130,872.07 and 31,088.65 is: 46,631.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,251.52 : 130,872.07 = 31,088.65 : x
  2. Step 2: Convert to fraction form
    87,251.52/130,872.07 = 31,088.65/x
  3. Step 3: Cross multiply
    87,251.52x = 130,872.07 × 31,088.65
  4. Step 4: Simplify right side
    87,251.52x = 4,068,635,979.01
  5. Step 5: Solve for x
    x = 4,068,635,979.01/87,251.52
  6. Step 6: Final answer
    x = 46,631.12

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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.