Home / 87,799.98-131,704.20-28,635.54

Finding the Fourth Proportional to 87,799.98, 131,704.20 and 28,635.54

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Solution

The fourth proportional to 87,799.98, 131,704.20 and 28,635.54 is: 42,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,799.98 : 131,704.20 = 28,635.54 : x
  2. Step 2: Convert to fraction form
    87,799.98/131,704.20 = 28,635.54/x
  3. Step 3: Cross multiply
    87,799.98x = 131,704.20 × 28,635.54
  4. Step 4: Simplify right side
    87,799.98x = 3,771,420,887.27
  5. Step 5: Solve for x
    x = 3,771,420,887.27/87,799.98
  6. Step 6: Final answer
    x = 42,954.69

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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.