Home / 91,910.19-137,879.30-46,906.97

Finding the Fourth Proportional to 91,910.19, 137,879.30 and 46,906.97

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Solution

The fourth proportional to 91,910.19, 137,879.30 and 46,906.97 is: 70,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,910.19 : 137,879.30 = 46,906.97 : x
  2. Step 2: Convert to fraction form
    91,910.19/137,879.30 = 46,906.97/x
  3. Step 3: Cross multiply
    91,910.19x = 137,879.30 × 46,906.97
  4. Step 4: Simplify right side
    91,910.19x = 6,467,500,516.10
  5. Step 5: Solve for x
    x = 6,467,500,516.10/91,910.19
  6. Step 6: Final answer
    x = 70,367.61

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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.