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Finding the Fourth Proportional to 68,975, 95,185.60 and 39,167

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Solution

The fourth proportional to 68,975, 95,185.60 and 39,167 is: 54,050.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,975 : 95,185.60 = 39,167 : x
  2. Step 2: Convert to fraction form
    68,975/95,185.60 = 39,167/x
  3. Step 3: Cross multiply
    68,975x = 95,185.60 × 39,167
  4. Step 4: Simplify right side
    68,975x = 3,728,134,395.20
  5. Step 5: Solve for x
    x = 3,728,134,395.20/68,975
  6. Step 6: Final answer
    x = 54,050.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.