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Finding the Third Proportional to 66,987 and 92,276

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Solution

The third proportional to 66,987 and 92,276 is: 127,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,987 : 92,276 = 92,276 : x
  2. Step 2: Convert to fraction form
    66,987/92,276 = 92,276/x
  3. Step 3: Cross multiply
    66,987x = 92,276 × 92,276
  4. Step 4: Simplify right side
    66,987x = 8,514,860,176
  5. Step 5: Solve for x
    x = 8,514,860,176/66,987
  6. Step 6: Final answer
    x = 127,112.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.