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Finding the Fourth Proportional to 93,270.80, 139,906.20 and 53,807.60

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Solution

The fourth proportional to 93,270.80, 139,906.20 and 53,807.60 is: 80,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,270.80 : 139,906.20 = 53,807.60 : x
  2. Step 2: Convert to fraction form
    93,270.80/139,906.20 = 53,807.60/x
  3. Step 3: Cross multiply
    93,270.80x = 139,906.20 × 53,807.60
  4. Step 4: Simplify right side
    93,270.80x = 7,528,016,847.12
  5. Step 5: Solve for x
    x = 7,528,016,847.12/93,270.80
  6. Step 6: Final answer
    x = 80,711.40

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