Home / 82,591.53-123,936.30-30,005.12

Finding the Fourth Proportional to 82,591.53, 123,936.30 and 30,005.12

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Solution

The fourth proportional to 82,591.53, 123,936.30 and 30,005.12 is: 45,025.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,591.53 : 123,936.30 = 30,005.12 : x
  2. Step 2: Convert to fraction form
    82,591.53/123,936.30 = 30,005.12/x
  3. Step 3: Cross multiply
    82,591.53x = 123,936.30 × 30,005.12
  4. Step 4: Simplify right side
    82,591.53x = 3,718,722,934.17
  5. Step 5: Solve for x
    x = 3,718,722,934.17/82,591.53
  6. Step 6: Final answer
    x = 45,025.48

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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.