Home / 82,713.40-124,082.42-38,344.65

Finding the Fourth Proportional to 82,713.40, 124,082.42 and 38,344.65

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Solution

The fourth proportional to 82,713.40, 124,082.42 and 38,344.65 is: 57,522.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,713.40 : 124,082.42 = 38,344.65 : x
  2. Step 2: Convert to fraction form
    82,713.40/124,082.42 = 38,344.65/x
  3. Step 3: Cross multiply
    82,713.40x = 124,082.42 × 38,344.65
  4. Step 4: Simplify right side
    82,713.40x = 4,757,896,966.05
  5. Step 5: Solve for x
    x = 4,757,896,966.05/82,713.40
  6. Step 6: Final answer
    x = 57,522.69

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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.