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Finding the Third Proportional to 42,120 and 61,190.44

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Solution

The third proportional to 42,120 and 61,190.44 is: 88,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120 : 61,190.44 = 61,190.44 : x
  2. Step 2: Convert to fraction form
    42,120/61,190.44 = 61,190.44/x
  3. Step 3: Cross multiply
    42,120x = 61,190.44 × 61,190.44
  4. Step 4: Simplify right side
    42,120x = 3,744,269,641.44
  5. Step 5: Solve for x
    x = 3,744,269,641.44/42,120
  6. Step 6: Final answer
    x = 88,895.29

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.