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Finding the Third Proportional to 30,074 and 64,961

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Solution

The third proportional to 30,074 and 64,961 is: 140,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,074 : 64,961 = 64,961 : x
  2. Step 2: Convert to fraction form
    30,074/64,961 = 64,961/x
  3. Step 3: Cross multiply
    30,074x = 64,961 × 64,961
  4. Step 4: Simplify right side
    30,074x = 4,219,931,521
  5. Step 5: Solve for x
    x = 4,219,931,521/30,074
  6. Step 6: Final answer
    x = 140,318.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.