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Finding the Fourth Proportional to 68,380.20, 102,675.90 and 37,276.20

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Solution

The fourth proportional to 68,380.20, 102,675.90 and 37,276.20 is: 55,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,380.20 : 102,675.90 = 37,276.20 : x
  2. Step 2: Convert to fraction form
    68,380.20/102,675.90 = 37,276.20/x
  3. Step 3: Cross multiply
    68,380.20x = 102,675.90 × 37,276.20
  4. Step 4: Simplify right side
    68,380.20x = 3,827,367,383.58
  5. Step 5: Solve for x
    x = 3,827,367,383.58/68,380.20
  6. Step 6: Final answer
    x = 55,971.87

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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.