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Finding the Fourth Proportional to 66,676, 92,013.96 and 36,868

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Solution

The fourth proportional to 66,676, 92,013.96 and 36,868 is: 50,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,676 : 92,013.96 = 36,868 : x
  2. Step 2: Convert to fraction form
    66,676/92,013.96 = 36,868/x
  3. Step 3: Cross multiply
    66,676x = 92,013.96 × 36,868
  4. Step 4: Simplify right side
    66,676x = 3,392,370,677.28
  5. Step 5: Solve for x
    x = 3,392,370,677.28/66,676
  6. Step 6: Final answer
    x = 50,878.44

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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.