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Finding the Third Proportional to 67,075 and 90,771

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Solution

The third proportional to 67,075 and 90,771 is: 122,838.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,075 : 90,771 = 90,771 : x
  2. Step 2: Convert to fraction form
    67,075/90,771 = 90,771/x
  3. Step 3: Cross multiply
    67,075x = 90,771 × 90,771
  4. Step 4: Simplify right side
    67,075x = 8,239,374,441
  5. Step 5: Solve for x
    x = 8,239,374,441/67,075
  6. Step 6: Final answer
    x = 122,838.23

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.