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Finding the Fourth Proportional to 79,222.82, 118,833.11 and 19,251.74

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Solution

The fourth proportional to 79,222.82, 118,833.11 and 19,251.74 is: 28,877.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,222.82 : 118,833.11 = 19,251.74 : x
  2. Step 2: Convert to fraction form
    79,222.82/118,833.11 = 19,251.74/x
  3. Step 3: Cross multiply
    79,222.82x = 118,833.11 × 19,251.74
  4. Step 4: Simplify right side
    79,222.82x = 2,287,743,741.69
  5. Step 5: Solve for x
    x = 2,287,743,741.69/79,222.82
  6. Step 6: Final answer
    x = 28,877.33

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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.