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Finding the Third Proportional to 20,445 and 43,104

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Solution

The third proportional to 20,445 and 43,104 is: 90,875.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445 : 43,104 = 43,104 : x
  2. Step 2: Convert to fraction form
    20,445/43,104 = 43,104/x
  3. Step 3: Cross multiply
    20,445x = 43,104 × 43,104
  4. Step 4: Simplify right side
    20,445x = 1,857,954,816
  5. Step 5: Solve for x
    x = 1,857,954,816/20,445
  6. Step 6: Final answer
    x = 90,875.76

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.