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Finding the Fourth Proportional to 54,792.40, 82,188.60 and 31,464.40

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Solution

The fourth proportional to 54,792.40, 82,188.60 and 31,464.40 is: 47,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,792.40 : 82,188.60 = 31,464.40 : x
  2. Step 2: Convert to fraction form
    54,792.40/82,188.60 = 31,464.40/x
  3. Step 3: Cross multiply
    54,792.40x = 82,188.60 × 31,464.40
  4. Step 4: Simplify right side
    54,792.40x = 2,586,014,985.84
  5. Step 5: Solve for x
    x = 2,586,014,985.84/54,792.40
  6. Step 6: Final answer
    x = 47,196.60

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