Home / 68,791.27-103,187.04-18,872.08

Finding the Fourth Proportional to 68,791.27, 103,187.04 and 18,872.08

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Solution

The fourth proportional to 68,791.27, 103,187.04 and 18,872.08 is: 28,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,791.27 : 103,187.04 = 18,872.08 : x
  2. Step 2: Convert to fraction form
    68,791.27/103,187.04 = 18,872.08/x
  3. Step 3: Cross multiply
    68,791.27x = 103,187.04 × 18,872.08
  4. Step 4: Simplify right side
    68,791.27x = 1,947,354,073.84
  5. Step 5: Solve for x
    x = 1,947,354,073.84/68,791.27
  6. Step 6: Final answer
    x = 28,308.16

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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.