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Finding the Fourth Proportional to 70,880.68, 106,321.14 and 66,550.42

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Solution

The fourth proportional to 70,880.68, 106,321.14 and 66,550.42 is: 99,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,880.68 : 106,321.14 = 66,550.42 : x
  2. Step 2: Convert to fraction form
    70,880.68/106,321.14 = 66,550.42/x
  3. Step 3: Cross multiply
    70,880.68x = 106,321.14 × 66,550.42
  4. Step 4: Simplify right side
    70,880.68x = 7,075,716,521.88
  5. Step 5: Solve for x
    x = 7,075,716,521.88/70,880.68
  6. Step 6: Final answer
    x = 99,825.74

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