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Finding the Fourth Proportional to 76,788.60, 114,922.80 and 47,225.16

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Solution

The fourth proportional to 76,788.60, 114,922.80 and 47,225.16 is: 70,677.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,788.60 : 114,922.80 = 47,225.16 : x
  2. Step 2: Convert to fraction form
    76,788.60/114,922.80 = 47,225.16/x
  3. Step 3: Cross multiply
    76,788.60x = 114,922.80 × 47,225.16
  4. Step 4: Simplify right side
    76,788.60x = 5,427,247,617.65
  5. Step 5: Solve for x
    x = 5,427,247,617.65/76,788.60
  6. Step 6: Final answer
    x = 70,677.78

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