Home / 89,778.49-123,882.67-51,539.71

Finding the Fourth Proportional to 89,778.49, 123,882.67 and 51,539.71

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Solution

The fourth proportional to 89,778.49, 123,882.67 and 51,539.71 is: 71,118.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,778.49 : 123,882.67 = 51,539.71 : x
  2. Step 2: Convert to fraction form
    89,778.49/123,882.67 = 51,539.71/x
  3. Step 3: Cross multiply
    89,778.49x = 123,882.67 × 51,539.71
  4. Step 4: Simplify right side
    89,778.49x = 6,384,876,582.91
  5. Step 5: Solve for x
    x = 6,384,876,582.91/89,778.49
  6. Step 6: Final answer
    x = 71,118.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.