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Finding the Third Proportional to 21,865.78 and 45,287.44

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Solution

The third proportional to 21,865.78 and 45,287.44 is: 93,797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,865.78 : 45,287.44 = 45,287.44 : x
  2. Step 2: Convert to fraction form
    21,865.78/45,287.44 = 45,287.44/x
  3. Step 3: Cross multiply
    21,865.78x = 45,287.44 × 45,287.44
  4. Step 4: Simplify right side
    21,865.78x = 2,050,951,995.32
  5. Step 5: Solve for x
    x = 2,050,951,995.32/21,865.78
  6. Step 6: Final answer
    x = 93,797.33

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.