Home / 90,998.98-125,578.69-50,711.83

Finding the Fourth Proportional to 90,998.98, 125,578.69 and 50,711.83

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Solution

The fourth proportional to 90,998.98, 125,578.69 and 50,711.83 is: 69,982.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,998.98 : 125,578.69 = 50,711.83 : x
  2. Step 2: Convert to fraction form
    90,998.98/125,578.69 = 50,711.83/x
  3. Step 3: Cross multiply
    90,998.98x = 125,578.69 × 50,711.83
  4. Step 4: Simplify right side
    90,998.98x = 6,368,324,738.18
  5. Step 5: Solve for x
    x = 6,368,324,738.18/90,998.98
  6. Step 6: Final answer
    x = 69,982.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.