Home / 68,769.04-103,168.14-21,382.96

Finding the Fourth Proportional to 68,769.04, 103,168.14 and 21,382.96

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Solution

The fourth proportional to 68,769.04, 103,168.14 and 21,382.96 is: 32,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,769.04 : 103,168.14 = 21,382.96 : x
  2. Step 2: Convert to fraction form
    68,769.04/103,168.14 = 21,382.96/x
  3. Step 3: Cross multiply
    68,769.04x = 103,168.14 × 21,382.96
  4. Step 4: Simplify right side
    68,769.04x = 2,206,040,210.89
  5. Step 5: Solve for x
    x = 2,206,040,210.89/68,769.04
  6. Step 6: Final answer
    x = 32,078.97

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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.