Home / 82,517.52-123,775.16-20,188.56

Finding the Fourth Proportional to 82,517.52, 123,775.16 and 20,188.56

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Solution

The fourth proportional to 82,517.52, 123,775.16 and 20,188.56 is: 30,282.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,517.52 : 123,775.16 = 20,188.56 : x
  2. Step 2: Convert to fraction form
    82,517.52/123,775.16 = 20,188.56/x
  3. Step 3: Cross multiply
    82,517.52x = 123,775.16 × 20,188.56
  4. Step 4: Simplify right side
    82,517.52x = 2,498,842,244.17
  5. Step 5: Solve for x
    x = 2,498,842,244.17/82,517.52
  6. Step 6: Final answer
    x = 30,282.57

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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.