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Finding the Third Proportional to 25,456 and 54,678

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Solution

The third proportional to 25,456 and 54,678 is: 117,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,456 : 54,678 = 54,678 : x
  2. Step 2: Convert to fraction form
    25,456/54,678 = 54,678/x
  3. Step 3: Cross multiply
    25,456x = 54,678 × 54,678
  4. Step 4: Simplify right side
    25,456x = 2,989,683,684
  5. Step 5: Solve for x
    x = 2,989,683,684/25,456
  6. Step 6: Final answer
    x = 117,445.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.