Home / 80,310.94-120,467.62-30,414.53

Finding the Fourth Proportional to 80,310.94, 120,467.62 and 30,414.53

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Solution

The fourth proportional to 80,310.94, 120,467.62 and 30,414.53 is: 45,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,310.94 : 120,467.62 = 30,414.53 : x
  2. Step 2: Convert to fraction form
    80,310.94/120,467.62 = 30,414.53/x
  3. Step 3: Cross multiply
    80,310.94x = 120,467.62 × 30,414.53
  4. Step 4: Simplify right side
    80,310.94x = 3,663,966,042.52
  5. Step 5: Solve for x
    x = 3,663,966,042.52/80,310.94
  6. Step 6: Final answer
    x = 45,622.25

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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.