Home / 87,911.38-131,888.93-25,581.88

Finding the Fourth Proportional to 87,911.38, 131,888.93 and 25,581.88

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Solution

The fourth proportional to 87,911.38, 131,888.93 and 25,581.88 is: 38,379.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,911.38 : 131,888.93 = 25,581.88 : x
  2. Step 2: Convert to fraction form
    87,911.38/131,888.93 = 25,581.88/x
  3. Step 3: Cross multiply
    87,911.38x = 131,888.93 × 25,581.88
  4. Step 4: Simplify right side
    87,911.38x = 3,373,966,780.59
  5. Step 5: Solve for x
    x = 3,373,966,780.59/87,911.38
  6. Step 6: Final answer
    x = 38,379.18

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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.