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Finding the Fourth Proportional to 45,195.54, 67,793.71 and 11,920.33

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Solution

The fourth proportional to 45,195.54, 67,793.71 and 11,920.33 is: 17,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,195.54 : 67,793.71 = 11,920.33 : x
  2. Step 2: Convert to fraction form
    45,195.54/67,793.71 = 11,920.33/x
  3. Step 3: Cross multiply
    45,195.54x = 67,793.71 × 11,920.33
  4. Step 4: Simplify right side
    45,195.54x = 808,123,365.32
  5. Step 5: Solve for x
    x = 808,123,365.32/45,195.54
  6. Step 6: Final answer
    x = 17,880.60

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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.