Home / 66,395.38-91,626.07-36,180.61

Finding the Fourth Proportional to 66,395.38, 91,626.07 and 36,180.61

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Solution

The fourth proportional to 66,395.38, 91,626.07 and 36,180.61 is: 49,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,395.38 : 91,626.07 = 36,180.61 : x
  2. Step 2: Convert to fraction form
    66,395.38/91,626.07 = 36,180.61/x
  3. Step 3: Cross multiply
    66,395.38x = 91,626.07 × 36,180.61
  4. Step 4: Simplify right side
    66,395.38x = 3,315,087,392.01
  5. Step 5: Solve for x
    x = 3,315,087,392.01/66,395.38
  6. Step 6: Final answer
    x = 49,929.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.