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Finding the Fourth Proportional to 70,654.78, 97,508.15 and 40,449.88

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Solution

The fourth proportional to 70,654.78, 97,508.15 and 40,449.88 is: 55,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,654.78 : 97,508.15 = 40,449.88 : x
  2. Step 2: Convert to fraction form
    70,654.78/97,508.15 = 40,449.88/x
  3. Step 3: Cross multiply
    70,654.78x = 97,508.15 × 40,449.88
  4. Step 4: Simplify right side
    70,654.78x = 3,944,193,265.38
  5. Step 5: Solve for x
    x = 3,944,193,265.38/70,654.78
  6. Step 6: Final answer
    x = 55,823.44

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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.