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Finding the Fourth Proportional to 67,806, 101,709 and 18,558

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Solution

The fourth proportional to 67,806, 101,709 and 18,558 is: 27,837

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,806 : 101,709 = 18,558 : x
  2. Step 2: Convert to fraction form
    67,806/101,709 = 18,558/x
  3. Step 3: Cross multiply
    67,806x = 101,709 × 18,558
  4. Step 4: Simplify right side
    67,806x = 1,887,515,622
  5. Step 5: Solve for x
    x = 1,887,515,622/67,806
  6. Step 6: Final answer
    x = 27,837

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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.