Home / 87,425.95-131,106.80-31,250.90

Finding the Fourth Proportional to 87,425.95, 131,106.80 and 31,250.90

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Solution

The fourth proportional to 87,425.95, 131,106.80 and 31,250.90 is: 46,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,425.95 : 131,106.80 = 31,250.90 : x
  2. Step 2: Convert to fraction form
    87,425.95/131,106.80 = 31,250.90/x
  3. Step 3: Cross multiply
    87,425.95x = 131,106.80 × 31,250.90
  4. Step 4: Simplify right side
    87,425.95x = 4,097,205,339.87
  5. Step 5: Solve for x
    x = 4,097,205,339.87/87,425.95
  6. Step 6: Final answer
    x = 46,864.86

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1.5x scale

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.