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Finding the Fourth Proportional to 55,978.70, 83,950.80 and 18,531.03

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Solution

The fourth proportional to 55,978.70, 83,950.80 and 18,531.03 is: 27,790.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,978.70 : 83,950.80 = 18,531.03 : x
  2. Step 2: Convert to fraction form
    55,978.70/83,950.80 = 18,531.03/x
  3. Step 3: Cross multiply
    55,978.70x = 83,950.80 × 18,531.03
  4. Step 4: Simplify right side
    55,978.70x = 1,555,694,722.78
  5. Step 5: Solve for x
    x = 1,555,694,722.78/55,978.70
  6. Step 6: Final answer
    x = 27,790.84

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