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Finding the Fourth Proportional to 81,785.72, 112,873.70 and 45,490.84

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Solution

The fourth proportional to 81,785.72, 112,873.70 and 45,490.84 is: 62,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,785.72 : 112,873.70 = 45,490.84 : x
  2. Step 2: Convert to fraction form
    81,785.72/112,873.70 = 45,490.84/x
  3. Step 3: Cross multiply
    81,785.72x = 112,873.70 × 45,490.84
  4. Step 4: Simplify right side
    81,785.72x = 5,134,719,426.91
  5. Step 5: Solve for x
    x = 5,134,719,426.91/81,785.72
  6. Step 6: Final answer
    x = 62,782.59

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