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Finding the Third Proportional to 28,607 and 63,031

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Solution

The third proportional to 28,607 and 63,031 is: 138,878.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607 : 63,031 = 63,031 : x
  2. Step 2: Convert to fraction form
    28,607/63,031 = 63,031/x
  3. Step 3: Cross multiply
    28,607x = 63,031 × 63,031
  4. Step 4: Simplify right side
    28,607x = 3,972,906,961
  5. Step 5: Solve for x
    x = 3,972,906,961/28,607
  6. Step 6: Final answer
    x = 138,878.84

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.