Home / 87,756.25-131,654.20-27,788.38

Finding the Fourth Proportional to 87,756.25, 131,654.20 and 27,788.38

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Solution

The fourth proportional to 87,756.25, 131,654.20 and 27,788.38 is: 41,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756.25 : 131,654.20 = 27,788.38 : x
  2. Step 2: Convert to fraction form
    87,756.25/131,654.20 = 27,788.38/x
  3. Step 3: Cross multiply
    87,756.25x = 131,654.20 × 27,788.38
  4. Step 4: Simplify right side
    87,756.25x = 3,658,456,938.20
  5. Step 5: Solve for x
    x = 3,658,456,938.20/87,756.25
  6. Step 6: Final answer
    x = 41,688.85

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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.