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Finding the Fourth Proportional to 54,935.90, 82,403.85 and 31,607.90

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Solution

The fourth proportional to 54,935.90, 82,403.85 and 31,607.90 is: 47,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,935.90 : 82,403.85 = 31,607.90 : x
  2. Step 2: Convert to fraction form
    54,935.90/82,403.85 = 31,607.90/x
  3. Step 3: Cross multiply
    54,935.90x = 82,403.85 × 31,607.90
  4. Step 4: Simplify right side
    54,935.90x = 2,604,612,650.42
  5. Step 5: Solve for x
    x = 2,604,612,650.42/54,935.90
  6. Step 6: Final answer
    x = 47,411.85

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