Home / 45,481.12-68,228.96-19,189.73

Finding the Fourth Proportional to 45,481.12, 68,228.96 and 19,189.73

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Solution

The fourth proportional to 45,481.12, 68,228.96 and 19,189.73 is: 28,787.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,481.12 : 68,228.96 = 19,189.73 : x
  2. Step 2: Convert to fraction form
    45,481.12/68,228.96 = 19,189.73/x
  3. Step 3: Cross multiply
    45,481.12x = 68,228.96 × 19,189.73
  4. Step 4: Simplify right side
    45,481.12x = 1,309,295,320.58
  5. Step 5: Solve for x
    x = 1,309,295,320.58/45,481.12
  6. Step 6: Final answer
    x = 28,787.67

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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.