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Finding the Fourth Proportional to 83,781.12, 115,618.32 and 46,057.80

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Solution

The fourth proportional to 83,781.12, 115,618.32 and 46,057.80 is: 63,559.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,781.12 : 115,618.32 = 46,057.80 : x
  2. Step 2: Convert to fraction form
    83,781.12/115,618.32 = 46,057.80/x
  3. Step 3: Cross multiply
    83,781.12x = 115,618.32 × 46,057.80
  4. Step 4: Simplify right side
    83,781.12x = 5,325,125,458.90
  5. Step 5: Solve for x
    x = 5,325,125,458.90/83,781.12
  6. Step 6: Final answer
    x = 63,559.97

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