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Finding the Fourth Proportional to 67,397.40, 100,896.42 and 49,945.56

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Solution

The fourth proportional to 67,397.40, 100,896.42 and 49,945.56 is: 74,770.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,397.40 : 100,896.42 = 49,945.56 : x
  2. Step 2: Convert to fraction form
    67,397.40/100,896.42 = 49,945.56/x
  3. Step 3: Cross multiply
    67,397.40x = 100,896.42 × 49,945.56
  4. Step 4: Simplify right side
    67,397.40x = 5,039,328,198.90
  5. Step 5: Solve for x
    x = 5,039,328,198.90/67,397.40
  6. Step 6: Final answer
    x = 74,770.37

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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.