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Finding the Third Proportional to 28,121 and 43,526

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Solution

The third proportional to 28,121 and 43,526 is: 67,370.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121 : 43,526 = 43,526 : x
  2. Step 2: Convert to fraction form
    28,121/43,526 = 43,526/x
  3. Step 3: Cross multiply
    28,121x = 43,526 × 43,526
  4. Step 4: Simplify right side
    28,121x = 1,894,512,676
  5. Step 5: Solve for x
    x = 1,894,512,676/28,121
  6. Step 6: Final answer
    x = 67,370.03

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.