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Finding the Third Proportional to 64,539 and 97,779

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Solution

The third proportional to 64,539 and 97,779 is: 148,138.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,539 : 97,779 = 97,779 : x
  2. Step 2: Convert to fraction form
    64,539/97,779 = 97,779/x
  3. Step 3: Cross multiply
    64,539x = 97,779 × 97,779
  4. Step 4: Simplify right side
    64,539x = 9,560,732,841
  5. Step 5: Solve for x
    x = 9,560,732,841/64,539
  6. Step 6: Final answer
    x = 148,138.84

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.