Home / 68,864.10-103,310.55-22,121.70

Finding the Fourth Proportional to 68,864.10, 103,310.55 and 22,121.70

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Solution

The fourth proportional to 68,864.10, 103,310.55 and 22,121.70 is: 33,187.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,864.10 : 103,310.55 = 22,121.70 : x
  2. Step 2: Convert to fraction form
    68,864.10/103,310.55 = 22,121.70/x
  3. Step 3: Cross multiply
    68,864.10x = 103,310.55 × 22,121.70
  4. Step 4: Simplify right side
    68,864.10x = 2,285,404,993.94
  5. Step 5: Solve for x
    x = 2,285,404,993.94/68,864.10
  6. Step 6: Final answer
    x = 33,187.18

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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.