Home / 87,708.54-131,504.97-31,520.46

Finding the Fourth Proportional to 87,708.54, 131,504.97 and 31,520.46

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Solution

The fourth proportional to 87,708.54, 131,504.97 and 31,520.46 is: 47,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,708.54 : 131,504.97 = 31,520.46 : x
  2. Step 2: Convert to fraction form
    87,708.54/131,504.97 = 31,520.46/x
  3. Step 3: Cross multiply
    87,708.54x = 131,504.97 × 31,520.46
  4. Step 4: Simplify right side
    87,708.54x = 4,145,097,146.69
  5. Step 5: Solve for x
    x = 4,145,097,146.69/87,708.54
  6. Step 6: Final answer
    x = 47,259.90

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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.