Home / 90,661.07-135,991.58-28,331.57

Finding the Fourth Proportional to 90,661.07, 135,991.58 and 28,331.57

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Solution

The fourth proportional to 90,661.07, 135,991.58 and 28,331.57 is: 42,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,661.07 : 135,991.58 = 28,331.57 : x
  2. Step 2: Convert to fraction form
    90,661.07/135,991.58 = 28,331.57/x
  3. Step 3: Cross multiply
    90,661.07x = 135,991.58 × 28,331.57
  4. Step 4: Simplify right side
    90,661.07x = 3,852,854,968.18
  5. Step 5: Solve for x
    x = 3,852,854,968.18/90,661.07
  6. Step 6: Final answer
    x = 42,497.35

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