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Finding the Fourth Proportional to 81,712.94, 112,665.75 and 59,015.66

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Solution

The fourth proportional to 81,712.94, 112,665.75 and 59,015.66 is: 81,370.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,712.94 : 112,665.75 = 59,015.66 : x
  2. Step 2: Convert to fraction form
    81,712.94/112,665.75 = 59,015.66/x
  3. Step 3: Cross multiply
    81,712.94x = 112,665.75 × 59,015.66
  4. Step 4: Simplify right side
    81,712.94x = 6,649,043,595.65
  5. Step 5: Solve for x
    x = 6,649,043,595.65/81,712.94
  6. Step 6: Final answer
    x = 81,370.75

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