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Finding the Fourth Proportional to 57,153.25, 78,872.12 and 31,660.01

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Solution

The fourth proportional to 57,153.25, 78,872.12 and 31,660.01 is: 43,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,153.25 : 78,872.12 = 31,660.01 : x
  2. Step 2: Convert to fraction form
    57,153.25/78,872.12 = 31,660.01/x
  3. Step 3: Cross multiply
    57,153.25x = 78,872.12 × 31,660.01
  4. Step 4: Simplify right side
    57,153.25x = 2,497,091,555.26
  5. Step 5: Solve for x
    x = 2,497,091,555.26/57,153.25
  6. Step 6: Final answer
    x = 43,691.15

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