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Finding the Third Proportional to 18,825.75 and 40,567.50

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Solution

The third proportional to 18,825.75 and 40,567.50 is: 87,418.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.75 : 40,567.50 = 40,567.50 : x
  2. Step 2: Convert to fraction form
    18,825.75/40,567.50 = 40,567.50/x
  3. Step 3: Cross multiply
    18,825.75x = 40,567.50 × 40,567.50
  4. Step 4: Simplify right side
    18,825.75x = 1,645,722,056.25
  5. Step 5: Solve for x
    x = 1,645,722,056.25/18,825.75
  6. Step 6: Final answer
    x = 87,418.67

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.