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Finding the Third Proportional to 43,578 and 69,633

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Solution

The third proportional to 43,578 and 69,633 is: 111,266.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,578 : 69,633 = 69,633 : x
  2. Step 2: Convert to fraction form
    43,578/69,633 = 69,633/x
  3. Step 3: Cross multiply
    43,578x = 69,633 × 69,633
  4. Step 4: Simplify right side
    43,578x = 4,848,754,689
  5. Step 5: Solve for x
    x = 4,848,754,689/43,578
  6. Step 6: Final answer
    x = 111,266.11

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.