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Finding the Fourth Proportional to 48,309.73, 66,668.19 and 31,320.79

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Solution

The fourth proportional to 48,309.73, 66,668.19 and 31,320.79 is: 43,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,309.73 : 66,668.19 = 31,320.79 : x
  2. Step 2: Convert to fraction form
    48,309.73/66,668.19 = 31,320.79/x
  3. Step 3: Cross multiply
    48,309.73x = 66,668.19 × 31,320.79
  4. Step 4: Simplify right side
    48,309.73x = 2,088,100,378.67
  5. Step 5: Solve for x
    x = 2,088,100,378.67/48,309.73
  6. Step 6: Final answer
    x = 43,223.18

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