Home / 80,872.82-121,377.39-34,159.22

Finding the Fourth Proportional to 80,872.82, 121,377.39 and 34,159.22

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Solution

The fourth proportional to 80,872.82, 121,377.39 and 34,159.22 is: 51,267.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,872.82 : 121,377.39 = 34,159.22 : x
  2. Step 2: Convert to fraction form
    80,872.82/121,377.39 = 34,159.22/x
  3. Step 3: Cross multiply
    80,872.82x = 121,377.39 × 34,159.22
  4. Step 4: Simplify right side
    80,872.82x = 4,146,156,968.04
  5. Step 5: Solve for x
    x = 4,146,156,968.04/80,872.82
  6. Step 6: Final answer
    x = 51,267.62

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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.