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Finding the Third Proportional to 18,805 and 40,574.50

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Solution

The third proportional to 18,805 and 40,574.50 is: 87,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805 : 40,574.50 = 40,574.50 : x
  2. Step 2: Convert to fraction form
    18,805/40,574.50 = 40,574.50/x
  3. Step 3: Cross multiply
    18,805x = 40,574.50 × 40,574.50
  4. Step 4: Simplify right side
    18,805x = 1,646,290,050.25
  5. Step 5: Solve for x
    x = 1,646,290,050.25/18,805
  6. Step 6: Final answer
    x = 87,545.34

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.