Home / 87,584.60-131,474.10-54,342.20

Finding the Fourth Proportional to 87,584.60, 131,474.10 and 54,342.20

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Solution

The fourth proportional to 87,584.60, 131,474.10 and 54,342.20 is: 81,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,584.60 : 131,474.10 = 54,342.20 : x
  2. Step 2: Convert to fraction form
    87,584.60/131,474.10 = 54,342.20/x
  3. Step 3: Cross multiply
    87,584.60x = 131,474.10 × 54,342.20
  4. Step 4: Simplify right side
    87,584.60x = 7,144,591,837.02
  5. Step 5: Solve for x
    x = 7,144,591,837.02/87,584.60
  6. Step 6: Final answer
    x = 81,573.61

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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.