Home / 87,881.33-131,766.10-74,558.92

Finding the Fourth Proportional to 87,881.33, 131,766.10 and 74,558.92

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Solution

The fourth proportional to 87,881.33, 131,766.10 and 74,558.92 is: 111,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,881.33 : 131,766.10 = 74,558.92 : x
  2. Step 2: Convert to fraction form
    87,881.33/131,766.10 = 74,558.92/x
  3. Step 3: Cross multiply
    87,881.33x = 131,766.10 × 74,558.92
  4. Step 4: Simplify right side
    87,881.33x = 9,824,337,735.82
  5. Step 5: Solve for x
    x = 9,824,337,735.82/87,881.33
  6. Step 6: Final answer
    x = 111,790.96

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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.