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Finding the Fourth Proportional to 67,020, 100,369.08 and 55,997.52

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Solution

The fourth proportional to 67,020, 100,369.08 and 55,997.52 is: 83,861.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,020 : 100,369.08 = 55,997.52 : x
  2. Step 2: Convert to fraction form
    67,020/100,369.08 = 55,997.52/x
  3. Step 3: Cross multiply
    67,020x = 100,369.08 × 55,997.52
  4. Step 4: Simplify right side
    67,020x = 5,620,419,564.68
  5. Step 5: Solve for x
    x = 5,620,419,564.68/67,020
  6. Step 6: Final answer
    x = 83,861.83

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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.