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Finding the Third Proportional to 67,767.75 and 90,564.75

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Solution

The third proportional to 67,767.75 and 90,564.75 is: 121,030.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,767.75 : 90,564.75 = 90,564.75 : x
  2. Step 2: Convert to fraction form
    67,767.75/90,564.75 = 90,564.75/x
  3. Step 3: Cross multiply
    67,767.75x = 90,564.75 × 90,564.75
  4. Step 4: Simplify right side
    67,767.75x = 8,201,973,942.56
  5. Step 5: Solve for x
    x = 8,201,973,942.56/67,767.75
  6. Step 6: Final answer
    x = 121,030.64

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.