Home / 82,969.27-124,579.19-66,279.71

Finding the Fourth Proportional to 82,969.27, 124,579.19 and 66,279.71

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Solution

The fourth proportional to 82,969.27, 124,579.19 and 66,279.71 is: 99,519.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,969.27 : 124,579.19 = 66,279.71 : x
  2. Step 2: Convert to fraction form
    82,969.27/124,579.19 = 66,279.71/x
  3. Step 3: Cross multiply
    82,969.27x = 124,579.19 × 66,279.71
  4. Step 4: Simplify right side
    82,969.27x = 8,257,073,062.38
  5. Step 5: Solve for x
    x = 8,257,073,062.38/82,969.27
  6. Step 6: Final answer
    x = 99,519.66

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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.