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Finding the Fourth Proportional to 45,043.54, 67,576.32 and 31,742.48

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Solution

The fourth proportional to 45,043.54, 67,576.32 and 31,742.48 is: 47,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,043.54 : 67,576.32 = 31,742.48 : x
  2. Step 2: Convert to fraction form
    45,043.54/67,576.32 = 31,742.48/x
  3. Step 3: Cross multiply
    45,043.54x = 67,576.32 × 31,742.48
  4. Step 4: Simplify right side
    45,043.54x = 2,145,039,489.48
  5. Step 5: Solve for x
    x = 2,145,039,489.48/45,043.54
  6. Step 6: Final answer
    x = 47,621.47

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