Home / 71,612.11-107,418.21-27,228.61

Finding the Fourth Proportional to 71,612.11, 107,418.21 and 27,228.61

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Solution

The fourth proportional to 71,612.11, 107,418.21 and 27,228.61 is: 40,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,612.11 : 107,418.21 = 27,228.61 : x
  2. Step 2: Convert to fraction form
    71,612.11/107,418.21 = 27,228.61/x
  3. Step 3: Cross multiply
    71,612.11x = 107,418.21 × 27,228.61
  4. Step 4: Simplify right side
    71,612.11x = 2,924,848,546.99
  5. Step 5: Solve for x
    x = 2,924,848,546.99/71,612.11
  6. Step 6: Final answer
    x = 40,842.93

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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.