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Finding the Fourth Proportional to 72,910, 109,365 and 23,662

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Solution

The fourth proportional to 72,910, 109,365 and 23,662 is: 35,493

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,910 : 109,365 = 23,662 : x
  2. Step 2: Convert to fraction form
    72,910/109,365 = 23,662/x
  3. Step 3: Cross multiply
    72,910x = 109,365 × 23,662
  4. Step 4: Simplify right side
    72,910x = 2,587,794,630
  5. Step 5: Solve for x
    x = 2,587,794,630/72,910
  6. Step 6: Final answer
    x = 35,493

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.