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Finding the Fourth Proportional to 78,585.74, 108,450.66 and 48,388.48

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Solution

The fourth proportional to 78,585.74, 108,450.66 and 48,388.48 is: 66,777.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,585.74 : 108,450.66 = 48,388.48 : x
  2. Step 2: Convert to fraction form
    78,585.74/108,450.66 = 48,388.48/x
  3. Step 3: Cross multiply
    78,585.74x = 108,450.66 × 48,388.48
  4. Step 4: Simplify right side
    78,585.74x = 5,247,762,592.40
  5. Step 5: Solve for x
    x = 5,247,762,592.40/78,585.74
  6. Step 6: Final answer
    x = 66,777.54

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