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Finding the Fourth Proportional to 71,193.60, 98,251.80 and 40,982.64

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Solution

The fourth proportional to 71,193.60, 98,251.80 and 40,982.64 is: 56,558.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,193.60 : 98,251.80 = 40,982.64 : x
  2. Step 2: Convert to fraction form
    71,193.60/98,251.80 = 40,982.64/x
  3. Step 3: Cross multiply
    71,193.60x = 98,251.80 × 40,982.64
  4. Step 4: Simplify right side
    71,193.60x = 4,026,618,148.75
  5. Step 5: Solve for x
    x = 4,026,618,148.75/71,193.60
  6. Step 6: Final answer
    x = 56,558.71

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1.5x scale

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.