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Finding the Fourth Proportional to 83,656.98, 115,430.42 and 47,839.40

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Solution

The fourth proportional to 83,656.98, 115,430.42 and 47,839.40 is: 66,009.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,656.98 : 115,430.42 = 47,839.40 : x
  2. Step 2: Convert to fraction form
    83,656.98/115,430.42 = 47,839.40/x
  3. Step 3: Cross multiply
    83,656.98x = 115,430.42 × 47,839.40
  4. Step 4: Simplify right side
    83,656.98x = 5,522,121,218.20
  5. Step 5: Solve for x
    x = 5,522,121,218.20/83,656.98
  6. Step 6: Final answer
    x = 66,009.09

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