Home / 71,827.11-107,754.17-21,911.67

Finding the Fourth Proportional to 71,827.11, 107,754.17 and 21,911.67

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Solution

The fourth proportional to 71,827.11, 107,754.17 and 21,911.67 is: 32,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,827.11 : 107,754.17 = 21,911.67 : x
  2. Step 2: Convert to fraction form
    71,827.11/107,754.17 = 21,911.67/x
  3. Step 3: Cross multiply
    71,827.11x = 107,754.17 × 21,911.67
  4. Step 4: Simplify right side
    71,827.11x = 2,361,073,704.61
  5. Step 5: Solve for x
    x = 2,361,073,704.61/71,827.11
  6. Step 6: Final answer
    x = 32,871.62

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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.