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Finding the Fourth Proportional to 57,110.40, 85,665.60 and 46,612.80

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Solution

The fourth proportional to 57,110.40, 85,665.60 and 46,612.80 is: 69,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,110.40 : 85,665.60 = 46,612.80 : x
  2. Step 2: Convert to fraction form
    57,110.40/85,665.60 = 46,612.80/x
  3. Step 3: Cross multiply
    57,110.40x = 85,665.60 × 46,612.80
  4. Step 4: Simplify right side
    57,110.40x = 3,993,113,479.68
  5. Step 5: Solve for x
    x = 3,993,113,479.68/57,110.40
  6. Step 6: Final answer
    x = 69,919.20

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