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Finding the Fourth Proportional to 79,494.73, 119,241.61 and 20,330.30

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Solution

The fourth proportional to 79,494.73, 119,241.61 and 20,330.30 is: 30,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,494.73 : 119,241.61 = 20,330.30 : x
  2. Step 2: Convert to fraction form
    79,494.73/119,241.61 = 20,330.30/x
  3. Step 3: Cross multiply
    79,494.73x = 119,241.61 × 20,330.30
  4. Step 4: Simplify right side
    79,494.73x = 2,424,217,703.78
  5. Step 5: Solve for x
    x = 2,424,217,703.78/79,494.73
  6. Step 6: Final answer
    x = 30,495.33

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1.5x scale

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.