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Finding the Third Proportional to 36,346.50 and 78,421.50

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Solution

The third proportional to 36,346.50 and 78,421.50 is: 169,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,346.50 : 78,421.50 = 78,421.50 : x
  2. Step 2: Convert to fraction form
    36,346.50/78,421.50 = 78,421.50/x
  3. Step 3: Cross multiply
    36,346.50x = 78,421.50 × 78,421.50
  4. Step 4: Simplify right side
    36,346.50x = 6,149,931,662.25
  5. Step 5: Solve for x
    x = 6,149,931,662.25/36,346.50
  6. Step 6: Final answer
    x = 169,202.86

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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.