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Finding the Third Proportional to 28,861 and 61,877

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Solution

The third proportional to 28,861 and 61,877 is: 132,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861 : 61,877 = 61,877 : x
  2. Step 2: Convert to fraction form
    28,861/61,877 = 61,877/x
  3. Step 3: Cross multiply
    28,861x = 61,877 × 61,877
  4. Step 4: Simplify right side
    28,861x = 3,828,763,129
  5. Step 5: Solve for x
    x = 3,828,763,129/28,861
  6. Step 6: Final answer
    x = 132,662.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.