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Finding the Fourth Proportional to 73,695, 110,543.22 and 18,291

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Solution

The fourth proportional to 73,695, 110,543.22 and 18,291 is: 27,436.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,695 : 110,543.22 = 18,291 : x
  2. Step 2: Convert to fraction form
    73,695/110,543.22 = 18,291/x
  3. Step 3: Cross multiply
    73,695x = 110,543.22 × 18,291
  4. Step 4: Simplify right side
    73,695x = 2,021,946,037.02
  5. Step 5: Solve for x
    x = 2,021,946,037.02/73,695
  6. Step 6: Final answer
    x = 27,436.68

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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.