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Finding the Fourth Proportional to 57,193.80, 85,790.70 and 53,305.80

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Solution

The fourth proportional to 57,193.80, 85,790.70 and 53,305.80 is: 79,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,193.80 : 85,790.70 = 53,305.80 : x
  2. Step 2: Convert to fraction form
    57,193.80/85,790.70 = 53,305.80/x
  3. Step 3: Cross multiply
    57,193.80x = 85,790.70 × 53,305.80
  4. Step 4: Simplify right side
    57,193.80x = 4,573,141,896.06
  5. Step 5: Solve for x
    x = 4,573,141,896.06/57,193.80
  6. Step 6: Final answer
    x = 79,958.70

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