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Finding the Fourth Proportional to 93,511.20, 140,266.80 and 30,331.20

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Solution

The fourth proportional to 93,511.20, 140,266.80 and 30,331.20 is: 45,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,511.20 : 140,266.80 = 30,331.20 : x
  2. Step 2: Convert to fraction form
    93,511.20/140,266.80 = 30,331.20/x
  3. Step 3: Cross multiply
    93,511.20x = 140,266.80 × 30,331.20
  4. Step 4: Simplify right side
    93,511.20x = 4,254,460,364.16
  5. Step 5: Solve for x
    x = 4,254,460,364.16/93,511.20
  6. Step 6: Final answer
    x = 45,496.80

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