Home / 87,878.38-131,840.04-25,548.88

Finding the Fourth Proportional to 87,878.38, 131,840.04 and 25,548.88

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Solution

The fourth proportional to 87,878.38, 131,840.04 and 25,548.88 is: 38,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,878.38 : 131,840.04 = 25,548.88 : x
  2. Step 2: Convert to fraction form
    87,878.38/131,840.04 = 25,548.88/x
  3. Step 3: Cross multiply
    87,878.38x = 131,840.04 × 25,548.88
  4. Step 4: Simplify right side
    87,878.38x = 3,368,365,361.16
  5. Step 5: Solve for x
    x = 3,368,365,361.16/87,878.38
  6. Step 6: Final answer
    x = 38,329.85

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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.