Home / 71,716.96-98,974.20-39,891.52

Finding the Fourth Proportional to 71,716.96, 98,974.20 and 39,891.52

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Solution

The fourth proportional to 71,716.96, 98,974.20 and 39,891.52 is: 55,052.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,716.96 : 98,974.20 = 39,891.52 : x
  2. Step 2: Convert to fraction form
    71,716.96/98,974.20 = 39,891.52/x
  3. Step 3: Cross multiply
    71,716.96x = 98,974.20 × 39,891.52
  4. Step 4: Simplify right side
    71,716.96x = 3,948,231,278.78
  5. Step 5: Solve for x
    x = 3,948,231,278.78/71,716.96
  6. Step 6: Final answer
    x = 55,052.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.