Home / 80,557.04-120,834.28-19,767.96

Finding the Fourth Proportional to 80,557.04, 120,834.28 and 19,767.96

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Solution

The fourth proportional to 80,557.04, 120,834.28 and 19,767.96 is: 29,651.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,557.04 : 120,834.28 = 19,767.96 : x
  2. Step 2: Convert to fraction form
    80,557.04/120,834.28 = 19,767.96/x
  3. Step 3: Cross multiply
    80,557.04x = 120,834.28 × 19,767.96
  4. Step 4: Simplify right side
    80,557.04x = 2,388,647,213.67
  5. Step 5: Solve for x
    x = 2,388,647,213.67/80,557.04
  6. Step 6: Final answer
    x = 29,651.63

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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.