Home / 87,900.39-131,836.01-31,729.73

Finding the Fourth Proportional to 87,900.39, 131,836.01 and 31,729.73

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Solution

The fourth proportional to 87,900.39, 131,836.01 and 31,729.73 is: 47,589.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,900.39 : 131,836.01 = 31,729.73 : x
  2. Step 2: Convert to fraction form
    87,900.39/131,836.01 = 31,729.73/x
  3. Step 3: Cross multiply
    87,900.39x = 131,836.01 × 31,729.73
  4. Step 4: Simplify right side
    87,900.39x = 4,183,120,183.75
  5. Step 5: Solve for x
    x = 4,183,120,183.75/87,900.39
  6. Step 6: Final answer
    x = 47,589.32

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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.