Home / 275,374.82-412,982.85-75,701.72

Finding the Fourth Proportional to 275,374.82, 412,982.85 and 75,701.72

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Solution

The fourth proportional to 275,374.82, 412,982.85 and 75,701.72 is: 113,530.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,374.82 : 412,982.85 = 75,701.72 : x
  2. Step 2: Convert to fraction form
    275,374.82/412,982.85 = 75,701.72/x
  3. Step 3: Cross multiply
    275,374.82x = 412,982.85 × 75,701.72
  4. Step 4: Simplify right side
    275,374.82x = 31,263,513,391.84
  5. Step 5: Solve for x
    x = 31,263,513,391.84/275,374.82
  6. Step 6: Final answer
    x = 113,530.76

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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.