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Finding the Third Proportional to 20,811.63 and 45,508.75

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Solution

The third proportional to 20,811.63 and 45,508.75 is: 99,513.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811.63 : 45,508.75 = 45,508.75 : x
  2. Step 2: Convert to fraction form
    20,811.63/45,508.75 = 45,508.75/x
  3. Step 3: Cross multiply
    20,811.63x = 45,508.75 × 45,508.75
  4. Step 4: Simplify right side
    20,811.63x = 2,071,046,326.56
  5. Step 5: Solve for x
    x = 2,071,046,326.56/20,811.63
  6. Step 6: Final answer
    x = 99,513.92

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.