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Finding the Fourth Proportional to 36,689.16, 55,033.98 and 8,987.16

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Solution

The fourth proportional to 36,689.16, 55,033.98 and 8,987.16 is: 13,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.16 : 55,033.98 = 8,987.16 : x
  2. Step 2: Convert to fraction form
    36,689.16/55,033.98 = 8,987.16/x
  3. Step 3: Cross multiply
    36,689.16x = 55,033.98 × 8,987.16
  4. Step 4: Simplify right side
    36,689.16x = 494,599,183.70
  5. Step 5: Solve for x
    x = 494,599,183.70/36,689.16
  6. Step 6: Final answer
    x = 13,480.80

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