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Finding the Fourth Proportional to 63,857.20, 88,129.86 and 35,179.80

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Solution

The fourth proportional to 63,857.20, 88,129.86 and 35,179.80 is: 48,551.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,857.20 : 88,129.86 = 35,179.80 : x
  2. Step 2: Convert to fraction form
    63,857.20/88,129.86 = 35,179.80/x
  3. Step 3: Cross multiply
    63,857.20x = 88,129.86 × 35,179.80
  4. Step 4: Simplify right side
    63,857.20x = 3,100,390,540.55
  5. Step 5: Solve for x
    x = 3,100,390,540.55/63,857.20
  6. Step 6: Final answer
    x = 48,551.94

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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.