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Finding the Fourth Proportional to 98,486.57, 135,910.62 and 56,047.43

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Solution

The fourth proportional to 98,486.57, 135,910.62 and 56,047.43 is: 77,344.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,486.57 : 135,910.62 = 56,047.43 : x
  2. Step 2: Convert to fraction form
    98,486.57/135,910.62 = 56,047.43/x
  3. Step 3: Cross multiply
    98,486.57x = 135,910.62 × 56,047.43
  4. Step 4: Simplify right side
    98,486.57x = 7,617,440,281.15
  5. Step 5: Solve for x
    x = 7,617,440,281.15/98,486.57
  6. Step 6: Final answer
    x = 77,344.97

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