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Finding the Fourth Proportional to 67,753.50, 101,630.28 and 18,505.50

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Solution

The fourth proportional to 67,753.50, 101,630.28 and 18,505.50 is: 27,758.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,753.50 : 101,630.28 = 18,505.50 : x
  2. Step 2: Convert to fraction form
    67,753.50/101,630.28 = 18,505.50/x
  3. Step 3: Cross multiply
    67,753.50x = 101,630.28 × 18,505.50
  4. Step 4: Simplify right side
    67,753.50x = 1,880,719,146.54
  5. Step 5: Solve for x
    x = 1,880,719,146.54/67,753.50
  6. Step 6: Final answer
    x = 27,758.26

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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.