Home / 80,846.91-121,270.37-30,942.31

Finding the Fourth Proportional to 80,846.91, 121,270.37 and 30,942.31

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Solution

The fourth proportional to 80,846.91, 121,270.37 and 30,942.31 is: 46,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,846.91 : 121,270.37 = 30,942.31 : x
  2. Step 2: Convert to fraction form
    80,846.91/121,270.37 = 30,942.31/x
  3. Step 3: Cross multiply
    80,846.91x = 121,270.37 × 30,942.31
  4. Step 4: Simplify right side
    80,846.91x = 3,752,385,382.35
  5. Step 5: Solve for x
    x = 3,752,385,382.35/80,846.91
  6. Step 6: Final answer
    x = 46,413.47

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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.