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Finding the Fourth Proportional to 119,980, 179,970 and 32,428

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Solution

The fourth proportional to 119,980, 179,970 and 32,428 is: 48,642

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,980 : 179,970 = 32,428 : x
  2. Step 2: Convert to fraction form
    119,980/179,970 = 32,428/x
  3. Step 3: Cross multiply
    119,980x = 179,970 × 32,428
  4. Step 4: Simplify right side
    119,980x = 5,836,067,160
  5. Step 5: Solve for x
    x = 5,836,067,160/119,980
  6. Step 6: Final answer
    x = 48,642

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