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Finding the Third Proportional to 29,775 and 65,130

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Solution

The third proportional to 29,775 and 65,130 is: 142,465.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,775 : 65,130 = 65,130 : x
  2. Step 2: Convert to fraction form
    29,775/65,130 = 65,130/x
  3. Step 3: Cross multiply
    29,775x = 65,130 × 65,130
  4. Step 4: Simplify right side
    29,775x = 4,241,916,900
  5. Step 5: Solve for x
    x = 4,241,916,900/29,775
  6. Step 6: Final answer
    x = 142,465.72

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.