Home / 68,854.38-103,283.66-21,471.18

Finding the Fourth Proportional to 68,854.38, 103,283.66 and 21,471.18

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Solution

The fourth proportional to 68,854.38, 103,283.66 and 21,471.18 is: 32,207.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,854.38 : 103,283.66 = 21,471.18 : x
  2. Step 2: Convert to fraction form
    68,854.38/103,283.66 = 21,471.18/x
  3. Step 3: Cross multiply
    68,854.38x = 103,283.66 × 21,471.18
  4. Step 4: Simplify right side
    68,854.38x = 2,217,622,054.92
  5. Step 5: Solve for x
    x = 2,217,622,054.92/68,854.38
  6. Step 6: Final answer
    x = 32,207.42

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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.