Home / 312,629.36-468,942.82-75,972.74

Finding the Fourth Proportional to 312,629.36, 468,942.82 and 75,972.74

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Solution

The fourth proportional to 312,629.36, 468,942.82 and 75,972.74 is: 113,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,629.36 : 468,942.82 = 75,972.74 : x
  2. Step 2: Convert to fraction form
    312,629.36/468,942.82 = 75,972.74/x
  3. Step 3: Cross multiply
    312,629.36x = 468,942.82 × 75,972.74
  4. Step 4: Simplify right side
    312,629.36x = 35,626,870,938.73
  5. Step 5: Solve for x
    x = 35,626,870,938.73/312,629.36
  6. Step 6: Final answer
    x = 113,958.81

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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.