Home / 87,868.11-131,774.91-31,700.92

Finding the Fourth Proportional to 87,868.11, 131,774.91 and 31,700.92

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Solution

The fourth proportional to 87,868.11, 131,774.91 and 31,700.92 is: 47,541.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.11 : 131,774.91 = 31,700.92 : x
  2. Step 2: Convert to fraction form
    87,868.11/131,774.91 = 31,700.92/x
  3. Step 3: Cross multiply
    87,868.11x = 131,774.91 × 31,700.92
  4. Step 4: Simplify right side
    87,868.11x = 4,177,385,062.54
  5. Step 5: Solve for x
    x = 4,177,385,062.54/87,868.11
  6. Step 6: Final answer
    x = 47,541.54

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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.