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Finding the Fourth Proportional to 68,380.62, 94,356.78 and 38,167.62

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Solution

The fourth proportional to 68,380.62, 94,356.78 and 38,167.62 is: 52,666.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,380.62 : 94,356.78 = 38,167.62 : x
  2. Step 2: Convert to fraction form
    68,380.62/94,356.78 = 38,167.62/x
  3. Step 3: Cross multiply
    68,380.62x = 94,356.78 × 38,167.62
  4. Step 4: Simplify right side
    68,380.62x = 3,601,373,723.46
  5. Step 5: Solve for x
    x = 3,601,373,723.46/68,380.62
  6. Step 6: Final answer
    x = 52,666.58

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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.