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Finding the Fourth Proportional to 71,213.99, 98,210.27 and 61,139.21

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Solution

The fourth proportional to 71,213.99, 98,210.27 and 61,139.21 is: 84,316.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,213.99 : 98,210.27 = 61,139.21 : x
  2. Step 2: Convert to fraction form
    71,213.99/98,210.27 = 61,139.21/x
  3. Step 3: Cross multiply
    71,213.99x = 98,210.27 × 61,139.21
  4. Step 4: Simplify right side
    71,213.99x = 6,004,497,983.48
  5. Step 5: Solve for x
    x = 6,004,497,983.48/71,213.99
  6. Step 6: Final answer
    x = 84,316.28

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