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Finding the Fourth Proportional to 63,905.60, 88,188 and 35,609.60

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Solution

The fourth proportional to 63,905.60, 88,188 and 35,609.60 is: 49,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,905.60 : 88,188 = 35,609.60 : x
  2. Step 2: Convert to fraction form
    63,905.60/88,188 = 35,609.60/x
  3. Step 3: Cross multiply
    63,905.60x = 88,188 × 35,609.60
  4. Step 4: Simplify right side
    63,905.60x = 3,140,339,404.80
  5. Step 5: Solve for x
    x = 3,140,339,404.80/63,905.60
  6. Step 6: Final answer
    x = 49,140.29

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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.