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Finding the Third Proportional to 55,904 and 87,264

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Solution

The third proportional to 55,904 and 87,264 is: 136,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,904 : 87,264 = 87,264 : x
  2. Step 2: Convert to fraction form
    55,904/87,264 = 87,264/x
  3. Step 3: Cross multiply
    55,904x = 87,264 × 87,264
  4. Step 4: Simplify right side
    55,904x = 7,615,005,696
  5. Step 5: Solve for x
    x = 7,615,005,696/55,904
  6. Step 6: Final answer
    x = 136,215.76

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.