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Finding the Fourth Proportional to 79,361.56, 119,044.14 and 20,197

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Solution

The fourth proportional to 79,361.56, 119,044.14 and 20,197 is: 30,295.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,361.56 : 119,044.14 = 20,197 : x
  2. Step 2: Convert to fraction form
    79,361.56/119,044.14 = 20,197/x
  3. Step 3: Cross multiply
    79,361.56x = 119,044.14 × 20,197
  4. Step 4: Simplify right side
    79,361.56x = 2,404,334,495.58
  5. Step 5: Solve for x
    x = 2,404,334,495.58/79,361.56
  6. Step 6: Final answer
    x = 30,295.96

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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.