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Finding the Fourth Proportional to 65,425.80, 98,138.70 and 61,051.80

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Solution

The fourth proportional to 65,425.80, 98,138.70 and 61,051.80 is: 91,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,425.80 : 98,138.70 = 61,051.80 : x
  2. Step 2: Convert to fraction form
    65,425.80/98,138.70 = 61,051.80/x
  3. Step 3: Cross multiply
    65,425.80x = 98,138.70 × 61,051.80
  4. Step 4: Simplify right side
    65,425.80x = 5,991,544,284.66
  5. Step 5: Solve for x
    x = 5,991,544,284.66/65,425.80
  6. Step 6: Final answer
    x = 91,577.70

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