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Finding the Third Proportional to 25,620 and 55,728

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Solution

The third proportional to 25,620 and 55,728 is: 121,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,620 : 55,728 = 55,728 : x
  2. Step 2: Convert to fraction form
    25,620/55,728 = 55,728/x
  3. Step 3: Cross multiply
    25,620x = 55,728 × 55,728
  4. Step 4: Simplify right side
    25,620x = 3,105,609,984
  5. Step 5: Solve for x
    x = 3,105,609,984/25,620
  6. Step 6: Final answer
    x = 121,218.19

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.