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Finding the Fourth Proportional to 67,241.40, 100,862.10 and 40,997.40

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Solution

The fourth proportional to 67,241.40, 100,862.10 and 40,997.40 is: 61,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,241.40 : 100,862.10 = 40,997.40 : x
  2. Step 2: Convert to fraction form
    67,241.40/100,862.10 = 40,997.40/x
  3. Step 3: Cross multiply
    67,241.40x = 100,862.10 × 40,997.40
  4. Step 4: Simplify right side
    67,241.40x = 4,135,083,858.54
  5. Step 5: Solve for x
    x = 4,135,083,858.54/67,241.40
  6. Step 6: Final answer
    x = 61,496.10

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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.