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Finding the Fourth Proportional to 73,133.70, 109,700.55 and 61,323.90

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Solution

The fourth proportional to 73,133.70, 109,700.55 and 61,323.90 is: 91,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,133.70 : 109,700.55 = 61,323.90 : x
  2. Step 2: Convert to fraction form
    73,133.70/109,700.55 = 61,323.90/x
  3. Step 3: Cross multiply
    73,133.70x = 109,700.55 × 61,323.90
  4. Step 4: Simplify right side
    73,133.70x = 6,727,265,558.15
  5. Step 5: Solve for x
    x = 6,727,265,558.15/73,133.70
  6. Step 6: Final answer
    x = 91,985.85

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