Home / 81,849.15-122,765.40-25,689.69

Finding the Fourth Proportional to 81,849.15, 122,765.40 and 25,689.69

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Solution

The fourth proportional to 81,849.15, 122,765.40 and 25,689.69 is: 38,531.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,849.15 : 122,765.40 = 25,689.69 : x
  2. Step 2: Convert to fraction form
    81,849.15/122,765.40 = 25,689.69/x
  3. Step 3: Cross multiply
    81,849.15x = 122,765.40 × 25,689.69
  4. Step 4: Simplify right side
    81,849.15x = 3,153,805,068.73
  5. Step 5: Solve for x
    x = 3,153,805,068.73/81,849.15
  6. Step 6: Final answer
    x = 38,531.92

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