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Finding the Fourth Proportional to 54,081.12, 80,924.32 and 31,905.12

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Solution

The fourth proportional to 54,081.12, 80,924.32 and 31,905.12 is: 47,741.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,081.12 : 80,924.32 = 31,905.12 : x
  2. Step 2: Convert to fraction form
    54,081.12/80,924.32 = 31,905.12/x
  3. Step 3: Cross multiply
    54,081.12x = 80,924.32 × 31,905.12
  4. Step 4: Simplify right side
    54,081.12x = 2,581,900,140.52
  5. Step 5: Solve for x
    x = 2,581,900,140.52/54,081.12
  6. Step 6: Final answer
    x = 47,741.25

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