Home / 82,720.13-123,882.75-47,585.97

Finding the Fourth Proportional to 82,720.13, 123,882.75 and 47,585.97

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Solution

The fourth proportional to 82,720.13, 123,882.75 and 47,585.97 is: 71,265.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,720.13 : 123,882.75 = 47,585.97 : x
  2. Step 2: Convert to fraction form
    82,720.13/123,882.75 = 47,585.97/x
  3. Step 3: Cross multiply
    82,720.13x = 123,882.75 × 47,585.97
  4. Step 4: Simplify right side
    82,720.13x = 5,895,080,825.02
  5. Step 5: Solve for x
    x = 5,895,080,825.02/82,720.13
  6. Step 6: Final answer
    x = 71,265.38

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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.