Home / 86,801.15-119,719.35-74,721.47

Finding the Fourth Proportional to 86,801.15, 119,719.35 and 74,721.47

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Solution

The fourth proportional to 86,801.15, 119,719.35 and 74,721.47 is: 103,058.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,801.15 : 119,719.35 = 74,721.47 : x
  2. Step 2: Convert to fraction form
    86,801.15/119,719.35 = 74,721.47/x
  3. Step 3: Cross multiply
    86,801.15x = 119,719.35 × 74,721.47
  4. Step 4: Simplify right side
    86,801.15x = 8,945,605,819.44
  5. Step 5: Solve for x
    x = 8,945,605,819.44/86,801.15
  6. Step 6: Final answer
    x = 103,058.61

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