Home / 77,984.19-107,568.64-51,128.44

Finding the Fourth Proportional to 77,984.19, 107,568.64 and 51,128.44

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Solution

The fourth proportional to 77,984.19, 107,568.64 and 51,128.44 is: 70,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,984.19 : 107,568.64 = 51,128.44 : x
  2. Step 2: Convert to fraction form
    77,984.19/107,568.64 = 51,128.44/x
  3. Step 3: Cross multiply
    77,984.19x = 107,568.64 × 51,128.44
  4. Step 4: Simplify right side
    77,984.19x = 5,499,816,756.12
  5. Step 5: Solve for x
    x = 5,499,816,756.12/77,984.19
  6. Step 6: Final answer
    x = 70,524.77

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