Home / 312,625.36-468,936.82-75,968.74

Finding the Fourth Proportional to 312,625.36, 468,936.82 and 75,968.74

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Solution

The fourth proportional to 312,625.36, 468,936.82 and 75,968.74 is: 113,952.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,625.36 : 468,936.82 = 75,968.74 : x
  2. Step 2: Convert to fraction form
    312,625.36/468,936.82 = 75,968.74/x
  3. Step 3: Cross multiply
    312,625.36x = 468,936.82 × 75,968.74
  4. Step 4: Simplify right side
    312,625.36x = 35,624,539,355.01
  5. Step 5: Solve for x
    x = 35,624,539,355.01/312,625.36
  6. Step 6: Final answer
    x = 113,952.81

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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.