Home / 68,221.56-102,299.46-28,757.16

Finding the Fourth Proportional to 68,221.56, 102,299.46 and 28,757.16

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Solution

The fourth proportional to 68,221.56, 102,299.46 and 28,757.16 is: 43,121.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,221.56 : 102,299.46 = 28,757.16 : x
  2. Step 2: Convert to fraction form
    68,221.56/102,299.46 = 28,757.16/x
  3. Step 3: Cross multiply
    68,221.56x = 102,299.46 × 28,757.16
  4. Step 4: Simplify right side
    68,221.56x = 2,941,841,939.13
  5. Step 5: Solve for x
    x = 2,941,841,939.13/68,221.56
  6. Step 6: Final answer
    x = 43,121.88

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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.