Home / 71,704.14-98,949.38-39,872.49

Finding the Fourth Proportional to 71,704.14, 98,949.38 and 39,872.49

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Solution

The fourth proportional to 71,704.14, 98,949.38 and 39,872.49 is: 55,022.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,704.14 : 98,949.38 = 39,872.49 : x
  2. Step 2: Convert to fraction form
    71,704.14/98,949.38 = 39,872.49/x
  3. Step 3: Cross multiply
    71,704.14x = 98,949.38 × 39,872.49
  4. Step 4: Simplify right side
    71,704.14x = 3,945,357,965.19
  5. Step 5: Solve for x
    x = 3,945,357,965.19/71,704.14
  6. Step 6: Final answer
    x = 55,022.74

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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.