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Finding the Third Proportional to 20,154.75 and 42,710.44

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Solution

The third proportional to 20,154.75 and 42,710.44 is: 90,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.75 : 42,710.44 = 42,710.44 : x
  2. Step 2: Convert to fraction form
    20,154.75/42,710.44 = 42,710.44/x
  3. Step 3: Cross multiply
    20,154.75x = 42,710.44 × 42,710.44
  4. Step 4: Simplify right side
    20,154.75x = 1,824,181,471.44
  5. Step 5: Solve for x
    x = 1,824,181,471.44/20,154.75
  6. Step 6: Final answer
    x = 90,508.76

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.