Home / 87,912.38-131,890.43-25,582.88

Finding the Fourth Proportional to 87,912.38, 131,890.43 and 25,582.88

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Solution

The fourth proportional to 87,912.38, 131,890.43 and 25,582.88 is: 38,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,912.38 : 131,890.43 = 25,582.88 : x
  2. Step 2: Convert to fraction form
    87,912.38/131,890.43 = 25,582.88/x
  3. Step 3: Cross multiply
    87,912.38x = 131,890.43 × 25,582.88
  4. Step 4: Simplify right side
    87,912.38x = 3,374,137,043.84
  5. Step 5: Solve for x
    x = 3,374,137,043.84/87,912.38
  6. Step 6: Final answer
    x = 38,380.68

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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.