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Finding the Fourth Proportional to 65,265.80, 97,902.42 and 18,515

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Solution

The fourth proportional to 65,265.80, 97,902.42 and 18,515 is: 27,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,265.80 : 97,902.42 = 18,515 : x
  2. Step 2: Convert to fraction form
    65,265.80/97,902.42 = 18,515/x
  3. Step 3: Cross multiply
    65,265.80x = 97,902.42 × 18,515
  4. Step 4: Simplify right side
    65,265.80x = 1,812,663,306.30
  5. Step 5: Solve for x
    x = 1,812,663,306.30/65,265.80
  6. Step 6: Final answer
    x = 27,773.56

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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.