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Finding the Fourth Proportional to 87,982.74, 121,416.21 and 47,696.49

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Solution

The fourth proportional to 87,982.74, 121,416.21 and 47,696.49 is: 65,821.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,982.74 : 121,416.21 = 47,696.49 : x
  2. Step 2: Convert to fraction form
    87,982.74/121,416.21 = 47,696.49/x
  3. Step 3: Cross multiply
    87,982.74x = 121,416.21 × 47,696.49
  4. Step 4: Simplify right side
    87,982.74x = 5,791,127,046.10
  5. Step 5: Solve for x
    x = 5,791,127,046.10/87,982.74
  6. Step 6: Final answer
    x = 65,821.17

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