Home / 87,731.31-131,620.28-27,760.85

Finding the Fourth Proportional to 87,731.31, 131,620.28 and 27,760.85

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Solution

The fourth proportional to 87,731.31, 131,620.28 and 27,760.85 is: 41,648.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,731.31 : 131,620.28 = 27,760.85 : x
  2. Step 2: Convert to fraction form
    87,731.31/131,620.28 = 27,760.85/x
  3. Step 3: Cross multiply
    87,731.31x = 131,620.28 × 27,760.85
  4. Step 4: Simplify right side
    87,731.31x = 3,653,890,994.97
  5. Step 5: Solve for x
    x = 3,653,890,994.97/87,731.31
  6. Step 6: Final answer
    x = 41,648.65

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1.5x scale

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.