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Finding the Fourth Proportional to 93,678.30, 140,517.45 and 54,312.30

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Solution

The fourth proportional to 93,678.30, 140,517.45 and 54,312.30 is: 81,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,678.30 : 140,517.45 = 54,312.30 : x
  2. Step 2: Convert to fraction form
    93,678.30/140,517.45 = 54,312.30/x
  3. Step 3: Cross multiply
    93,678.30x = 140,517.45 × 54,312.30
  4. Step 4: Simplify right side
    93,678.30x = 7,631,825,899.64
  5. Step 5: Solve for x
    x = 7,631,825,899.64/93,678.30
  6. Step 6: Final answer
    x = 81,468.45

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