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Finding the Fourth Proportional to 68,165, 94,067.70 and 38,357.64

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Solution

The fourth proportional to 68,165, 94,067.70 and 38,357.64 is: 52,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,165 : 94,067.70 = 38,357.64 : x
  2. Step 2: Convert to fraction form
    68,165/94,067.70 = 38,357.64/x
  3. Step 3: Cross multiply
    68,165x = 94,067.70 × 38,357.64
  4. Step 4: Simplify right side
    68,165x = 3,608,214,972.23
  5. Step 5: Solve for x
    x = 3,608,214,972.23/68,165
  6. Step 6: Final answer
    x = 52,933.54

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1.5x scale

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.