Home / 68,856.38-103,286.66-21,473.18

Finding the Fourth Proportional to 68,856.38, 103,286.66 and 21,473.18

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Solution

The fourth proportional to 68,856.38, 103,286.66 and 21,473.18 is: 32,210.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,856.38 : 103,286.66 = 21,473.18 : x
  2. Step 2: Convert to fraction form
    68,856.38/103,286.66 = 21,473.18/x
  3. Step 3: Cross multiply
    68,856.38x = 103,286.66 × 21,473.18
  4. Step 4: Simplify right side
    68,856.38x = 2,217,893,041.78
  5. Step 5: Solve for x
    x = 2,217,893,041.78/68,856.38
  6. Step 6: Final answer
    x = 32,210.42

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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.