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Finding the Fourth Proportional to 63,671.67, 87,874.57 and 36,820.78

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Solution

The fourth proportional to 63,671.67, 87,874.57 and 36,820.78 is: 50,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,671.67 : 87,874.57 = 36,820.78 : x
  2. Step 2: Convert to fraction form
    63,671.67/87,874.57 = 36,820.78/x
  3. Step 3: Cross multiply
    63,671.67x = 87,874.57 × 36,820.78
  4. Step 4: Simplify right side
    63,671.67x = 3,235,610,035.90
  5. Step 5: Solve for x
    x = 3,235,610,035.90/63,671.67
  6. Step 6: Final answer
    x = 50,817.11

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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.