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Finding the Fourth Proportional to 86,869.92, 119,873.88 and 49,146.60

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Solution

The fourth proportional to 86,869.92, 119,873.88 and 49,146.60 is: 67,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,869.92 : 119,873.88 = 49,146.60 : x
  2. Step 2: Convert to fraction form
    86,869.92/119,873.88 = 49,146.60/x
  3. Step 3: Cross multiply
    86,869.92x = 119,873.88 × 49,146.60
  4. Step 4: Simplify right side
    86,869.92x = 5,891,393,630.81
  5. Step 5: Solve for x
    x = 5,891,393,630.81/86,869.92
  6. Step 6: Final answer
    x = 67,818.57

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