Home / 87,822.92-131,719.40-31,651.85

Finding the Fourth Proportional to 87,822.92, 131,719.40 and 31,651.85

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Solution

The fourth proportional to 87,822.92, 131,719.40 and 31,651.85 is: 47,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,822.92 : 131,719.40 = 31,651.85 : x
  2. Step 2: Convert to fraction form
    87,822.92/131,719.40 = 31,651.85/x
  3. Step 3: Cross multiply
    87,822.92x = 131,719.40 × 31,651.85
  4. Step 4: Simplify right side
    87,822.92x = 4,169,162,690.89
  5. Step 5: Solve for x
    x = 4,169,162,690.89/87,822.92
  6. Step 6: Final answer
    x = 47,472.38

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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.