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Finding the Fourth Proportional to 67,487.56, 101,241.02 and 20,744.36

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Solution

The fourth proportional to 67,487.56, 101,241.02 and 20,744.36 is: 31,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,487.56 : 101,241.02 = 20,744.36 : x
  2. Step 2: Convert to fraction form
    67,487.56/101,241.02 = 20,744.36/x
  3. Step 3: Cross multiply
    67,487.56x = 101,241.02 × 20,744.36
  4. Step 4: Simplify right side
    67,487.56x = 2,100,180,165.65
  5. Step 5: Solve for x
    x = 2,100,180,165.65/67,487.56
  6. Step 6: Final answer
    x = 31,119.52

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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.