Home / 83,081.11-124,620.68-56,360.90

Finding the Fourth Proportional to 83,081.11, 124,620.68 and 56,360.90

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Solution

The fourth proportional to 83,081.11, 124,620.68 and 56,360.90 is: 84,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,081.11 : 124,620.68 = 56,360.90 : x
  2. Step 2: Convert to fraction form
    83,081.11/124,620.68 = 56,360.90/x
  3. Step 3: Cross multiply
    83,081.11x = 124,620.68 × 56,360.90
  4. Step 4: Simplify right side
    83,081.11x = 7,023,733,201.21
  5. Step 5: Solve for x
    x = 7,023,733,201.21/83,081.11
  6. Step 6: Final answer
    x = 84,540.68

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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.