Home / 275,366.21-412,974.07-75,639.04

Finding the Fourth Proportional to 275,366.21, 412,974.07 and 75,639.04

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Solution

The fourth proportional to 275,366.21, 412,974.07 and 75,639.04 is: 113,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,366.21 : 412,974.07 = 75,639.04 : x
  2. Step 2: Convert to fraction form
    275,366.21/412,974.07 = 75,639.04/x
  3. Step 3: Cross multiply
    275,366.21x = 412,974.07 × 75,639.04
  4. Step 4: Simplify right side
    275,366.21x = 31,236,960,978.16
  5. Step 5: Solve for x
    x = 31,236,960,978.16/275,366.21
  6. Step 6: Final answer
    x = 113,437.89

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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.