Home / 87,346.35-130,987.28-31,171.43

Finding the Fourth Proportional to 87,346.35, 130,987.28 and 31,171.43

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Solution

The fourth proportional to 87,346.35, 130,987.28 and 31,171.43 is: 46,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,346.35 : 130,987.28 = 31,171.43 : x
  2. Step 2: Convert to fraction form
    87,346.35/130,987.28 = 31,171.43/x
  3. Step 3: Cross multiply
    87,346.35x = 130,987.28 × 31,171.43
  4. Step 4: Simplify right side
    87,346.35x = 4,083,060,829.41
  5. Step 5: Solve for x
    x = 4,083,060,829.41/87,346.35
  6. Step 6: Final answer
    x = 46,745.64

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