Home / 82,657.26-123,916.77-38,315.85

Finding the Fourth Proportional to 82,657.26, 123,916.77 and 38,315.85

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Solution

The fourth proportional to 82,657.26, 123,916.77 and 38,315.85 is: 57,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,657.26 : 123,916.77 = 38,315.85 : x
  2. Step 2: Convert to fraction form
    82,657.26/123,916.77 = 38,315.85/x
  3. Step 3: Cross multiply
    82,657.26x = 123,916.77 × 38,315.85
  4. Step 4: Simplify right side
    82,657.26x = 4,747,976,371.80
  5. Step 5: Solve for x
    x = 4,747,976,371.80/82,657.26
  6. Step 6: Final answer
    x = 57,441.73

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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.