Home / 87,906.54-131,872.39-27,121.96

Finding the Fourth Proportional to 87,906.54, 131,872.39 and 27,121.96

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Solution

The fourth proportional to 87,906.54, 131,872.39 and 27,121.96 is: 40,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,906.54 : 131,872.39 = 27,121.96 : x
  2. Step 2: Convert to fraction form
    87,906.54/131,872.39 = 27,121.96/x
  3. Step 3: Cross multiply
    87,906.54x = 131,872.39 × 27,121.96
  4. Step 4: Simplify right side
    87,906.54x = 3,576,637,783.72
  5. Step 5: Solve for x
    x = 3,576,637,783.72/87,906.54
  6. Step 6: Final answer
    x = 40,686.82

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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.