Home / 67,351.18-100,960.75-57,378.46

Finding the Fourth Proportional to 67,351.18, 100,960.75 and 57,378.46

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Solution

The fourth proportional to 67,351.18, 100,960.75 and 57,378.46 is: 86,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,351.18 : 100,960.75 = 57,378.46 : x
  2. Step 2: Convert to fraction form
    67,351.18/100,960.75 = 57,378.46/x
  3. Step 3: Cross multiply
    67,351.18x = 100,960.75 × 57,378.46
  4. Step 4: Simplify right side
    67,351.18x = 5,792,972,355.45
  5. Step 5: Solve for x
    x = 5,792,972,355.45/67,351.18
  6. Step 6: Final answer
    x = 86,011.45

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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.