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Finding the Third Proportional to 28,769 and 40,075

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Solution

The third proportional to 28,769 and 40,075 is: 55,824.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769 : 40,075 = 40,075 : x
  2. Step 2: Convert to fraction form
    28,769/40,075 = 40,075/x
  3. Step 3: Cross multiply
    28,769x = 40,075 × 40,075
  4. Step 4: Simplify right side
    28,769x = 1,606,005,625
  5. Step 5: Solve for x
    x = 1,606,005,625/28,769
  6. Step 6: Final answer
    x = 55,824.17

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.