Home / 87,326.76-131,047.50-47,911.56

Finding the Fourth Proportional to 87,326.76, 131,047.50 and 47,911.56

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Solution

The fourth proportional to 87,326.76, 131,047.50 and 47,911.56 is: 71,898.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,326.76 : 131,047.50 = 47,911.56 : x
  2. Step 2: Convert to fraction form
    87,326.76/131,047.50 = 47,911.56/x
  3. Step 3: Cross multiply
    87,326.76x = 131,047.50 × 47,911.56
  4. Step 4: Simplify right side
    87,326.76x = 6,278,690,159.10
  5. Step 5: Solve for x
    x = 6,278,690,159.10/87,326.76
  6. Step 6: Final answer
    x = 71,898.81

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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.