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Finding the Third Proportional to 54,222 and 83,447

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Solution

The third proportional to 54,222 and 83,447 is: 128,423.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,222 : 83,447 = 83,447 : x
  2. Step 2: Convert to fraction form
    54,222/83,447 = 83,447/x
  3. Step 3: Cross multiply
    54,222x = 83,447 × 83,447
  4. Step 4: Simplify right side
    54,222x = 6,963,401,809
  5. Step 5: Solve for x
    x = 6,963,401,809/54,222
  6. Step 6: Final answer
    x = 128,423.92

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.