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Finding the Fourth Proportional to 93,640.72, 140,431.80 and 31,296.64

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Solution

The fourth proportional to 93,640.72, 140,431.80 and 31,296.64 is: 46,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,640.72 : 140,431.80 = 31,296.64 : x
  2. Step 2: Convert to fraction form
    93,640.72/140,431.80 = 31,296.64/x
  3. Step 3: Cross multiply
    93,640.72x = 140,431.80 × 31,296.64
  4. Step 4: Simplify right side
    93,640.72x = 4,395,043,489.15
  5. Step 5: Solve for x
    x = 4,395,043,489.15/93,640.72
  6. Step 6: Final answer
    x = 46,935.17

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