Home / 80,648.25-120,992.76-57,002.28

Finding the Fourth Proportional to 80,648.25, 120,992.76 and 57,002.28

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Solution

The fourth proportional to 80,648.25, 120,992.76 and 57,002.28 is: 85,517.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,648.25 : 120,992.76 = 57,002.28 : x
  2. Step 2: Convert to fraction form
    80,648.25/120,992.76 = 57,002.28/x
  3. Step 3: Cross multiply
    80,648.25x = 120,992.76 × 57,002.28
  4. Step 4: Simplify right side
    80,648.25x = 6,896,863,183.49
  5. Step 5: Solve for x
    x = 6,896,863,183.49/80,648.25
  6. Step 6: Final answer
    x = 85,517.83

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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.