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Finding the Fourth Proportional to 55,419.80, 83,059.60 and 35,421.58

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Solution

The fourth proportional to 55,419.80, 83,059.60 and 35,421.58 is: 53,087.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,419.80 : 83,059.60 = 35,421.58 : x
  2. Step 2: Convert to fraction form
    55,419.80/83,059.60 = 35,421.58/x
  3. Step 3: Cross multiply
    55,419.80x = 83,059.60 × 35,421.58
  4. Step 4: Simplify right side
    55,419.80x = 2,942,102,213.87
  5. Step 5: Solve for x
    x = 2,942,102,213.87/55,419.80
  6. Step 6: Final answer
    x = 53,087.57

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