Home / 120,036.32-180,054.56-31,289.60

Finding the Fourth Proportional to 120,036.32, 180,054.56 and 31,289.60

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Solution

The fourth proportional to 120,036.32, 180,054.56 and 31,289.60 is: 46,934.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,036.32 : 180,054.56 = 31,289.60 : x
  2. Step 2: Convert to fraction form
    120,036.32/180,054.56 = 31,289.60/x
  3. Step 3: Cross multiply
    120,036.32x = 180,054.56 × 31,289.60
  4. Step 4: Simplify right side
    120,036.32x = 5,633,835,160.58
  5. Step 5: Solve for x
    x = 5,633,835,160.58/120,036.32
  6. Step 6: Final answer
    x = 46,934.42

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