Home / 71,958.08-107,213.64-67,934

Finding the Fourth Proportional to 71,958.08, 107,213.64 and 67,934

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Solution

The fourth proportional to 71,958.08, 107,213.64 and 67,934 is: 101,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,958.08 : 107,213.64 = 67,934 : x
  2. Step 2: Convert to fraction form
    71,958.08/107,213.64 = 67,934/x
  3. Step 3: Cross multiply
    71,958.08x = 107,213.64 × 67,934
  4. Step 4: Simplify right side
    71,958.08x = 7,283,451,419.76
  5. Step 5: Solve for x
    x = 7,283,451,419.76/71,958.08
  6. Step 6: Final answer
    x = 101,217.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.