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Finding the Fourth Proportional to 313,427.80, 470,141.70 and 91,811.80

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Solution

The fourth proportional to 313,427.80, 470,141.70 and 91,811.80 is: 137,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,427.80 : 470,141.70 = 91,811.80 : x
  2. Step 2: Convert to fraction form
    313,427.80/470,141.70 = 91,811.80/x
  3. Step 3: Cross multiply
    313,427.80x = 470,141.70 × 91,811.80
  4. Step 4: Simplify right side
    313,427.80x = 43,164,555,732.06
  5. Step 5: Solve for x
    x = 43,164,555,732.06/313,427.80
  6. Step 6: Final answer
    x = 137,717.70

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