Home / 87,765.45-131,568.20-31,592.35

Finding the Fourth Proportional to 87,765.45, 131,568.20 and 31,592.35

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Solution

The fourth proportional to 87,765.45, 131,568.20 and 31,592.35 is: 47,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,765.45 : 131,568.20 = 31,592.35 : x
  2. Step 2: Convert to fraction form
    87,765.45/131,568.20 = 31,592.35/x
  3. Step 3: Cross multiply
    87,765.45x = 131,568.20 × 31,592.35
  4. Step 4: Simplify right side
    87,765.45x = 4,156,548,623.27
  5. Step 5: Solve for x
    x = 4,156,548,623.27/87,765.45
  6. Step 6: Final answer
    x = 47,359.74

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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.