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Finding the Fourth Proportional to 76,541.70, 105,663.42 and 51,091.06

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Solution

The fourth proportional to 76,541.70, 105,663.42 and 51,091.06 is: 70,529.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,541.70 : 105,663.42 = 51,091.06 : x
  2. Step 2: Convert to fraction form
    76,541.70/105,663.42 = 51,091.06/x
  3. Step 3: Cross multiply
    76,541.70x = 105,663.42 × 51,091.06
  4. Step 4: Simplify right side
    76,541.70x = 5,398,456,131.03
  5. Step 5: Solve for x
    x = 5,398,456,131.03/76,541.70
  6. Step 6: Final answer
    x = 70,529.61

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