Home / 68,853.38-103,282.16-21,470.18

Finding the Fourth Proportional to 68,853.38, 103,282.16 and 21,470.18

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Solution

The fourth proportional to 68,853.38, 103,282.16 and 21,470.18 is: 32,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,853.38 : 103,282.16 = 21,470.18 : x
  2. Step 2: Convert to fraction form
    68,853.38/103,282.16 = 21,470.18/x
  3. Step 3: Cross multiply
    68,853.38x = 103,282.16 × 21,470.18
  4. Step 4: Simplify right side
    68,853.38x = 2,217,485,942.23
  5. Step 5: Solve for x
    x = 2,217,485,942.23/68,853.38
  6. Step 6: Final answer
    x = 32,205.91

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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.