Home / 82,000.14-123,031.20-32,115.90

Finding the Fourth Proportional to 82,000.14, 123,031.20 and 32,115.90

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Solution

The fourth proportional to 82,000.14, 123,031.20 and 32,115.90 is: 48,185.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,000.14 : 123,031.20 = 32,115.90 : x
  2. Step 2: Convert to fraction form
    82,000.14/123,031.20 = 32,115.90/x
  3. Step 3: Cross multiply
    82,000.14x = 123,031.20 × 32,115.90
  4. Step 4: Simplify right side
    82,000.14x = 3,951,257,716.08
  5. Step 5: Solve for x
    x = 3,951,257,716.08/82,000.14
  6. Step 6: Final answer
    x = 48,185.99

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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.