Home / 82,134.11-123,213.30-25,961.47

Finding the Fourth Proportional to 82,134.11, 123,213.30 and 25,961.47

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Solution

The fourth proportional to 82,134.11, 123,213.30 and 25,961.47 is: 38,946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,134.11 : 123,213.30 = 25,961.47 : x
  2. Step 2: Convert to fraction form
    82,134.11/123,213.30 = 25,961.47/x
  3. Step 3: Cross multiply
    82,134.11x = 123,213.30 × 25,961.47
  4. Step 4: Simplify right side
    82,134.11x = 3,198,798,998.54
  5. Step 5: Solve for x
    x = 3,198,798,998.54/82,134.11
  6. Step 6: Final answer
    x = 38,946.05

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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.