Home / 49,419.75-74,121.29-13,872.92

Finding the Fourth Proportional to 49,419.75, 74,121.29 and 13,872.92

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Solution

The fourth proportional to 49,419.75, 74,121.29 and 13,872.92 is: 20,807.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,419.75 : 74,121.29 = 13,872.92 : x
  2. Step 2: Convert to fraction form
    49,419.75/74,121.29 = 13,872.92/x
  3. Step 3: Cross multiply
    49,419.75x = 74,121.29 × 13,872.92
  4. Step 4: Simplify right side
    49,419.75x = 1,028,278,286.50
  5. Step 5: Solve for x
    x = 1,028,278,286.50/49,419.75
  6. Step 6: Final answer
    x = 20,807.03

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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.