Home / 82,429.57-123,452.07-60,187.78

Finding the Fourth Proportional to 82,429.57, 123,452.07 and 60,187.78

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Solution

The fourth proportional to 82,429.57, 123,452.07 and 60,187.78 is: 90,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,429.57 : 123,452.07 = 60,187.78 : x
  2. Step 2: Convert to fraction form
    82,429.57/123,452.07 = 60,187.78/x
  3. Step 3: Cross multiply
    82,429.57x = 123,452.07 × 60,187.78
  4. Step 4: Simplify right side
    82,429.57x = 7,430,306,029.70
  5. Step 5: Solve for x
    x = 7,430,306,029.70/82,429.57
  6. Step 6: Final answer
    x = 90,141.27

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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.