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Finding the Fourth Proportional to 99,473.48, 149,211.77 and 55,380.47

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Solution

The fourth proportional to 99,473.48, 149,211.77 and 55,380.47 is: 83,071.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,473.48 : 149,211.77 = 55,380.47 : x
  2. Step 2: Convert to fraction form
    99,473.48/149,211.77 = 55,380.47/x
  3. Step 3: Cross multiply
    99,473.48x = 149,211.77 × 55,380.47
  4. Step 4: Simplify right side
    99,473.48x = 8,263,417,952.13
  5. Step 5: Solve for x
    x = 8,263,417,952.13/99,473.48
  6. Step 6: Final answer
    x = 83,071.57

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