Home / 80,664.32-120,998.16-29,371.20

Finding the Fourth Proportional to 80,664.32, 120,998.16 and 29,371.20

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Solution

The fourth proportional to 80,664.32, 120,998.16 and 29,371.20 is: 44,057.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,664.32 : 120,998.16 = 29,371.20 : x
  2. Step 2: Convert to fraction form
    80,664.32/120,998.16 = 29,371.20/x
  3. Step 3: Cross multiply
    80,664.32x = 120,998.16 × 29,371.20
  4. Step 4: Simplify right side
    80,664.32x = 3,553,861,156.99
  5. Step 5: Solve for x
    x = 3,553,861,156.99/80,664.32
  6. Step 6: Final answer
    x = 44,057.41

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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.