Home / 90,766.13-136,156.37-27,591.75

Finding the Fourth Proportional to 90,766.13, 136,156.37 and 27,591.75

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Solution

The fourth proportional to 90,766.13, 136,156.37 and 27,591.75 is: 41,389.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,766.13 : 136,156.37 = 27,591.75 : x
  2. Step 2: Convert to fraction form
    90,766.13/136,156.37 = 27,591.75/x
  3. Step 3: Cross multiply
    90,766.13x = 136,156.37 × 27,591.75
  4. Step 4: Simplify right side
    90,766.13x = 3,756,792,521.95
  5. Step 5: Solve for x
    x = 3,756,792,521.95/90,766.13
  6. Step 6: Final answer
    x = 41,389.81

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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.