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Finding the Fourth Proportional to 73,310, 109,965 and 17,906

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Solution

The fourth proportional to 73,310, 109,965 and 17,906 is: 26,859

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,310 : 109,965 = 17,906 : x
  2. Step 2: Convert to fraction form
    73,310/109,965 = 17,906/x
  3. Step 3: Cross multiply
    73,310x = 109,965 × 17,906
  4. Step 4: Simplify right side
    73,310x = 1,969,033,290
  5. Step 5: Solve for x
    x = 1,969,033,290/73,310
  6. Step 6: Final answer
    x = 26,859

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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.