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Finding the Fourth Proportional to 80,793.60, 121,196.48 and 21,627.96

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Solution

The fourth proportional to 80,793.60, 121,196.48 and 21,627.96 is: 32,443.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,793.60 : 121,196.48 = 21,627.96 : x
  2. Step 2: Convert to fraction form
    80,793.60/121,196.48 = 21,627.96/x
  3. Step 3: Cross multiply
    80,793.60x = 121,196.48 × 21,627.96
  4. Step 4: Simplify right side
    80,793.60x = 2,621,232,513.44
  5. Step 5: Solve for x
    x = 2,621,232,513.44/80,793.60
  6. Step 6: Final answer
    x = 32,443.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.