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Finding the Third Proportional to 18,759.94 and 40,780.13

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Solution

The third proportional to 18,759.94 and 40,780.13 is: 88,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.94 : 40,780.13 = 40,780.13 : x
  2. Step 2: Convert to fraction form
    18,759.94/40,780.13 = 40,780.13/x
  3. Step 3: Cross multiply
    18,759.94x = 40,780.13 × 40,780.13
  4. Step 4: Simplify right side
    18,759.94x = 1,663,018,595.02
  5. Step 5: Solve for x
    x = 1,663,018,595.02/18,759.94
  6. Step 6: Final answer
    x = 88,647.34

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.