Home / 82,520.96-123,780.11-26,360.70

Finding the Fourth Proportional to 82,520.96, 123,780.11 and 26,360.70

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Solution

The fourth proportional to 82,520.96, 123,780.11 and 26,360.70 is: 39,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,520.96 : 123,780.11 = 26,360.70 : x
  2. Step 2: Convert to fraction form
    82,520.96/123,780.11 = 26,360.70/x
  3. Step 3: Cross multiply
    82,520.96x = 123,780.11 × 26,360.70
  4. Step 4: Simplify right side
    82,520.96x = 3,262,930,213.87
  5. Step 5: Solve for x
    x = 3,262,930,213.87/82,520.96
  6. Step 6: Final answer
    x = 39,540.63

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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.