Home / 82,543.26-123,821.79-26,391.36

Finding the Fourth Proportional to 82,543.26, 123,821.79 and 26,391.36

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Solution

The fourth proportional to 82,543.26, 123,821.79 and 26,391.36 is: 39,589.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,543.26 : 123,821.79 = 26,391.36 : x
  2. Step 2: Convert to fraction form
    82,543.26/123,821.79 = 26,391.36/x
  3. Step 3: Cross multiply
    82,543.26x = 123,821.79 × 26,391.36
  4. Step 4: Simplify right side
    82,543.26x = 3,267,825,435.73
  5. Step 5: Solve for x
    x = 3,267,825,435.73/82,543.26
  6. Step 6: Final answer
    x = 39,589.25

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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.