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Finding the Fourth Proportional to 65,215.53, 97,819.92 and 18,468.54

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Solution

The fourth proportional to 65,215.53, 97,819.92 and 18,468.54 is: 27,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,215.53 : 97,819.92 = 18,468.54 : x
  2. Step 2: Convert to fraction form
    65,215.53/97,819.92 = 18,468.54/x
  3. Step 3: Cross multiply
    65,215.53x = 97,819.92 × 18,468.54
  4. Step 4: Simplify right side
    65,215.53x = 1,806,591,105.32
  5. Step 5: Solve for x
    x = 1,806,591,105.32/65,215.53
  6. Step 6: Final answer
    x = 27,701.85

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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.