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Finding the Fourth Proportional to 81,500.26, 112,472.72 and 45,690.87

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Solution

The fourth proportional to 81,500.26, 112,472.72 and 45,690.87 is: 63,054.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,500.26 : 112,472.72 = 45,690.87 : x
  2. Step 2: Convert to fraction form
    81,500.26/112,472.72 = 45,690.87/x
  3. Step 3: Cross multiply
    81,500.26x = 112,472.72 × 45,690.87
  4. Step 4: Simplify right side
    81,500.26x = 5,138,976,428.07
  5. Step 5: Solve for x
    x = 5,138,976,428.07/81,500.26
  6. Step 6: Final answer
    x = 63,054.72

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