Home / 80,340.98-120,354.62-38,161.04

Finding the Fourth Proportional to 80,340.98, 120,354.62 and 38,161.04

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Solution

The fourth proportional to 80,340.98, 120,354.62 and 38,161.04 is: 57,167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,340.98 : 120,354.62 = 38,161.04 : x
  2. Step 2: Convert to fraction form
    80,340.98/120,354.62 = 38,161.04/x
  3. Step 3: Cross multiply
    80,340.98x = 120,354.62 × 38,161.04
  4. Step 4: Simplify right side
    80,340.98x = 4,592,857,468.00
  5. Step 5: Solve for x
    x = 4,592,857,468.00/80,340.98
  6. Step 6: Final answer
    x = 57,167.06

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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.