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Finding the Fourth Proportional to 68,028.12, 102,060 and 25,909.20

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Solution

The fourth proportional to 68,028.12, 102,060 and 25,909.20 is: 38,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,028.12 : 102,060 = 25,909.20 : x
  2. Step 2: Convert to fraction form
    68,028.12/102,060 = 25,909.20/x
  3. Step 3: Cross multiply
    68,028.12x = 102,060 × 25,909.20
  4. Step 4: Simplify right side
    68,028.12x = 2,644,292,952
  5. Step 5: Solve for x
    x = 2,644,292,952/68,028.12
  6. Step 6: Final answer
    x = 38,870.59

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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.