Home / 68,517.90-102,773.21-21,767.13

Finding the Fourth Proportional to 68,517.90, 102,773.21 and 21,767.13

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Solution

The fourth proportional to 68,517.90, 102,773.21 and 21,767.13 is: 32,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,517.90 : 102,773.21 = 21,767.13 : x
  2. Step 2: Convert to fraction form
    68,517.90/102,773.21 = 21,767.13/x
  3. Step 3: Cross multiply
    68,517.90x = 102,773.21 × 21,767.13
  4. Step 4: Simplify right side
    68,517.90x = 2,237,077,713.75
  5. Step 5: Solve for x
    x = 2,237,077,713.75/68,517.90
  6. Step 6: Final answer
    x = 32,649.54

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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.