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Finding the Fourth Proportional to 63,177.94, 87,149.01 and 40,821.94

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Solution

The fourth proportional to 63,177.94, 87,149.01 and 40,821.94 is: 56,310.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,177.94 : 87,149.01 = 40,821.94 : x
  2. Step 2: Convert to fraction form
    63,177.94/87,149.01 = 40,821.94/x
  3. Step 3: Cross multiply
    63,177.94x = 87,149.01 × 40,821.94
  4. Step 4: Simplify right side
    63,177.94x = 3,557,591,657.28
  5. Step 5: Solve for x
    x = 3,557,591,657.28/63,177.94
  6. Step 6: Final answer
    x = 56,310.66

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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.