Home / 80,532.72-120,800.28-27,943.86

Finding the Fourth Proportional to 80,532.72, 120,800.28 and 27,943.86

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Solution

The fourth proportional to 80,532.72, 120,800.28 and 27,943.86 is: 41,916.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,532.72 : 120,800.28 = 27,943.86 : x
  2. Step 2: Convert to fraction form
    80,532.72/120,800.28 = 27,943.86/x
  3. Step 3: Cross multiply
    80,532.72x = 120,800.28 × 27,943.86
  4. Step 4: Simplify right side
    80,532.72x = 3,375,626,112.28
  5. Step 5: Solve for x
    x = 3,375,626,112.28/80,532.72
  6. Step 6: Final answer
    x = 41,916.21

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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.