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Finding the Fourth Proportional to 64,882.68, 97,335.18 and 20,508.54

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Solution

The fourth proportional to 64,882.68, 97,335.18 and 20,508.54 is: 30,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,882.68 : 97,335.18 = 20,508.54 : x
  2. Step 2: Convert to fraction form
    64,882.68/97,335.18 = 20,508.54/x
  3. Step 3: Cross multiply
    64,882.68x = 97,335.18 × 20,508.54
  4. Step 4: Simplify right side
    64,882.68x = 1,996,202,432.44
  5. Step 5: Solve for x
    x = 1,996,202,432.44/64,882.68
  6. Step 6: Final answer
    x = 30,766.34

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1.5x scale

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.