Home / 84,217.72-126,309.49-30,891.54

Finding the Fourth Proportional to 84,217.72, 126,309.49 and 30,891.54

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Solution

The fourth proportional to 84,217.72, 126,309.49 and 30,891.54 is: 46,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,217.72 : 126,309.49 = 30,891.54 : x
  2. Step 2: Convert to fraction form
    84,217.72/126,309.49 = 30,891.54/x
  3. Step 3: Cross multiply
    84,217.72x = 126,309.49 × 30,891.54
  4. Step 4: Simplify right side
    84,217.72x = 3,901,895,232.91
  5. Step 5: Solve for x
    x = 3,901,895,232.91/84,217.72
  6. Step 6: Final answer
    x = 46,331.05

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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.