Home / 87,868.11-131,774.90-31,700.91

Finding the Fourth Proportional to 87,868.11, 131,774.90 and 31,700.91

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Solution

The fourth proportional to 87,868.11, 131,774.90 and 31,700.91 is: 47,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.11 : 131,774.90 = 31,700.91 : x
  2. Step 2: Convert to fraction form
    87,868.11/131,774.90 = 31,700.91/x
  3. Step 3: Cross multiply
    87,868.11x = 131,774.90 × 31,700.91
  4. Step 4: Simplify right side
    87,868.11x = 4,177,384,086.65
  5. Step 5: Solve for x
    x = 4,177,384,086.65/87,868.11
  6. Step 6: Final answer
    x = 47,541.53

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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.