Home / 87,568.22-131,328.40-31,397.90

Finding the Fourth Proportional to 87,568.22, 131,328.40 and 31,397.90

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Solution

The fourth proportional to 87,568.22, 131,328.40 and 31,397.90 is: 47,088.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,568.22 : 131,328.40 = 31,397.90 : x
  2. Step 2: Convert to fraction form
    87,568.22/131,328.40 = 31,397.90/x
  3. Step 3: Cross multiply
    87,568.22x = 131,328.40 × 31,397.90
  4. Step 4: Simplify right side
    87,568.22x = 4,123,435,970.36
  5. Step 5: Solve for x
    x = 4,123,435,970.36/87,568.22
  6. Step 6: Final answer
    x = 47,088.27

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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.