Home / 80,212.24-120,436.62-44,742.86

Finding the Fourth Proportional to 80,212.24, 120,436.62 and 44,742.86

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Solution

The fourth proportional to 80,212.24, 120,436.62 and 44,742.86 is: 67,180.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212.24 : 120,436.62 = 44,742.86 : x
  2. Step 2: Convert to fraction form
    80,212.24/120,436.62 = 44,742.86/x
  3. Step 3: Cross multiply
    80,212.24x = 120,436.62 × 44,742.86
  4. Step 4: Simplify right side
    80,212.24x = 5,388,678,827.53
  5. Step 5: Solve for x
    x = 5,388,678,827.53/80,212.24
  6. Step 6: Final answer
    x = 67,180.26

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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.