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Finding the Fourth Proportional to 90,357.27, 135,559.53 and 31,197.03

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Solution

The fourth proportional to 90,357.27, 135,559.53 and 31,197.03 is: 46,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,357.27 : 135,559.53 = 31,197.03 : x
  2. Step 2: Convert to fraction form
    90,357.27/135,559.53 = 31,197.03/x
  3. Step 3: Cross multiply
    90,357.27x = 135,559.53 × 31,197.03
  4. Step 4: Simplify right side
    90,357.27x = 4,229,054,724.20
  5. Step 5: Solve for x
    x = 4,229,054,724.20/90,357.27
  6. Step 6: Final answer
    x = 46,803.70

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