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Finding the Fourth Proportional to 77,764.80, 116,647.20 and 62,212.80

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Solution

The fourth proportional to 77,764.80, 116,647.20 and 62,212.80 is: 93,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,764.80 : 116,647.20 = 62,212.80 : x
  2. Step 2: Convert to fraction form
    77,764.80/116,647.20 = 62,212.80/x
  3. Step 3: Cross multiply
    77,764.80x = 116,647.20 × 62,212.80
  4. Step 4: Simplify right side
    77,764.80x = 7,256,948,924.16
  5. Step 5: Solve for x
    x = 7,256,948,924.16/77,764.80
  6. Step 6: Final answer
    x = 93,319.20

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