Home / 68,713.08-103,084.33-21,327.18

Finding the Fourth Proportional to 68,713.08, 103,084.33 and 21,327.18

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Solution

The fourth proportional to 68,713.08, 103,084.33 and 21,327.18 is: 31,995.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,713.08 : 103,084.33 = 21,327.18 : x
  2. Step 2: Convert to fraction form
    68,713.08/103,084.33 = 21,327.18/x
  3. Step 3: Cross multiply
    68,713.08x = 103,084.33 × 21,327.18
  4. Step 4: Simplify right side
    68,713.08x = 2,198,498,061.09
  5. Step 5: Solve for x
    x = 2,198,498,061.09/68,713.08
  6. Step 6: Final answer
    x = 31,995.34

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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.