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Finding the Fourth Proportional to 68,171.67, 94,080.79 and 40,956.08

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Solution

The fourth proportional to 68,171.67, 94,080.79 and 40,956.08 is: 56,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,171.67 : 94,080.79 = 40,956.08 : x
  2. Step 2: Convert to fraction form
    68,171.67/94,080.79 = 40,956.08/x
  3. Step 3: Cross multiply
    68,171.67x = 94,080.79 × 40,956.08
  4. Step 4: Simplify right side
    68,171.67x = 3,853,180,361.70
  5. Step 5: Solve for x
    x = 3,853,180,361.70/68,171.67
  6. Step 6: Final answer
    x = 56,521.72

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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.