Home / 80,107.72-120,135.15-29,495.07

Finding the Fourth Proportional to 80,107.72, 120,135.15 and 29,495.07

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Solution

The fourth proportional to 80,107.72, 120,135.15 and 29,495.07 is: 44,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,107.72 : 120,135.15 = 29,495.07 : x
  2. Step 2: Convert to fraction form
    80,107.72/120,135.15 = 29,495.07/x
  3. Step 3: Cross multiply
    80,107.72x = 120,135.15 × 29,495.07
  4. Step 4: Simplify right side
    80,107.72x = 3,543,394,658.71
  5. Step 5: Solve for x
    x = 3,543,394,658.71/80,107.72
  6. Step 6: Final answer
    x = 44,232.88

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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.