Home / 87,799.22-131,694.88-28,635.40

Finding the Fourth Proportional to 87,799.22, 131,694.88 and 28,635.40

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Solution

The fourth proportional to 87,799.22, 131,694.88 and 28,635.40 is: 42,951.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,799.22 : 131,694.88 = 28,635.40 : x
  2. Step 2: Convert to fraction form
    87,799.22/131,694.88 = 28,635.40/x
  3. Step 3: Cross multiply
    87,799.22x = 131,694.88 × 28,635.40
  4. Step 4: Simplify right side
    87,799.22x = 3,771,135,423.58
  5. Step 5: Solve for x
    x = 3,771,135,423.58/87,799.22
  6. Step 6: Final answer
    x = 42,951.81

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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.