Home / 45,321.91-67,959.52-20,340.54

Finding the Fourth Proportional to 45,321.91, 67,959.52 and 20,340.54

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Solution

The fourth proportional to 45,321.91, 67,959.52 and 20,340.54 is: 30,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,321.91 : 67,959.52 = 20,340.54 : x
  2. Step 2: Convert to fraction form
    45,321.91/67,959.52 = 20,340.54/x
  3. Step 3: Cross multiply
    45,321.91x = 67,959.52 × 20,340.54
  4. Step 4: Simplify right side
    45,321.91x = 1,382,333,284.09
  5. Step 5: Solve for x
    x = 1,382,333,284.09/45,321.91
  6. Step 6: Final answer
    x = 30,500.33

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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.