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Finding the Fourth Proportional to 84,660.46, 126,901.21 and 31,318.18

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Solution

The fourth proportional to 84,660.46, 126,901.21 and 31,318.18 is: 46,944.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,660.46 : 126,901.21 = 31,318.18 : x
  2. Step 2: Convert to fraction form
    84,660.46/126,901.21 = 31,318.18/x
  3. Step 3: Cross multiply
    84,660.46x = 126,901.21 × 31,318.18
  4. Step 4: Simplify right side
    84,660.46x = 3,974,315,315.14
  5. Step 5: Solve for x
    x = 3,974,315,315.14/84,660.46
  6. Step 6: Final answer
    x = 46,944.17

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