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Finding the Fourth Proportional to 67,591, 101,386.68 and 18,343

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Solution

The fourth proportional to 67,591, 101,386.68 and 18,343 is: 27,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,591 : 101,386.68 = 18,343 : x
  2. Step 2: Convert to fraction form
    67,591/101,386.68 = 18,343/x
  3. Step 3: Cross multiply
    67,591x = 101,386.68 × 18,343
  4. Step 4: Simplify right side
    67,591x = 1,859,735,871.24
  5. Step 5: Solve for x
    x = 1,859,735,871.24/67,591
  6. Step 6: Final answer
    x = 27,514.55

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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.