Home / 68,132.52-102,203.10-21,387.24

Finding the Fourth Proportional to 68,132.52, 102,203.10 and 21,387.24

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Solution

The fourth proportional to 68,132.52, 102,203.10 and 21,387.24 is: 32,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,132.52 : 102,203.10 = 21,387.24 : x
  2. Step 2: Convert to fraction form
    68,132.52/102,203.10 = 21,387.24/x
  3. Step 3: Cross multiply
    68,132.52x = 102,203.10 × 21,387.24
  4. Step 4: Simplify right side
    68,132.52x = 2,185,841,610.49
  5. Step 5: Solve for x
    x = 2,185,841,610.49/68,132.52
  6. Step 6: Final answer
    x = 32,082.21

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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.