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Finding the Third Proportional to 43,512 and 65,391

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Solution

The third proportional to 43,512 and 65,391 is: 98,271.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,512 : 65,391 = 65,391 : x
  2. Step 2: Convert to fraction form
    43,512/65,391 = 65,391/x
  3. Step 3: Cross multiply
    43,512x = 65,391 × 65,391
  4. Step 4: Simplify right side
    43,512x = 4,275,982,881
  5. Step 5: Solve for x
    x = 4,275,982,881/43,512
  6. Step 6: Final answer
    x = 98,271.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.