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Finding the Fourth Proportional to 53,620.75, 80,436.60 and 18,560.31

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Solution

The fourth proportional to 53,620.75, 80,436.60 and 18,560.31 is: 27,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,620.75 : 80,436.60 = 18,560.31 : x
  2. Step 2: Convert to fraction form
    53,620.75/80,436.60 = 18,560.31/x
  3. Step 3: Cross multiply
    53,620.75x = 80,436.60 × 18,560.31
  4. Step 4: Simplify right side
    53,620.75x = 1,492,927,736.36
  5. Step 5: Solve for x
    x = 1,492,927,736.36/53,620.75
  6. Step 6: Final answer
    x = 27,842.35

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