Home / 45,481.71-68,229.86-19,190.33

Finding the Fourth Proportional to 45,481.71, 68,229.86 and 19,190.33

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Solution

The fourth proportional to 45,481.71, 68,229.86 and 19,190.33 is: 28,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,481.71 : 68,229.86 = 19,190.33 : x
  2. Step 2: Convert to fraction form
    45,481.71/68,229.86 = 19,190.33/x
  3. Step 3: Cross multiply
    45,481.71x = 68,229.86 × 19,190.33
  4. Step 4: Simplify right side
    45,481.71x = 1,309,353,092.15
  5. Step 5: Solve for x
    x = 1,309,353,092.15/45,481.71
  6. Step 6: Final answer
    x = 28,788.56

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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.