Home / 89,354.20-123,291.62-57,105.66

Finding the Fourth Proportional to 89,354.20, 123,291.62 and 57,105.66

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Solution

The fourth proportional to 89,354.20, 123,291.62 and 57,105.66 is: 78,794.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,354.20 : 123,291.62 = 57,105.66 : x
  2. Step 2: Convert to fraction form
    89,354.20/123,291.62 = 57,105.66/x
  3. Step 3: Cross multiply
    89,354.20x = 123,291.62 × 57,105.66
  4. Step 4: Simplify right side
    89,354.20x = 7,040,649,332.57
  5. Step 5: Solve for x
    x = 7,040,649,332.57/89,354.20
  6. Step 6: Final answer
    x = 78,794.83

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1.5x scale

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.