Home / 81,018.82-121,292.88-47,181.67

Finding the Fourth Proportional to 81,018.82, 121,292.88 and 47,181.67

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Solution

The fourth proportional to 81,018.82, 121,292.88 and 47,181.67 is: 70,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,018.82 : 121,292.88 = 47,181.67 : x
  2. Step 2: Convert to fraction form
    81,018.82/121,292.88 = 47,181.67/x
  3. Step 3: Cross multiply
    81,018.82x = 121,292.88 × 47,181.67
  4. Step 4: Simplify right side
    81,018.82x = 5,722,800,637.51
  5. Step 5: Solve for x
    x = 5,722,800,637.51/81,018.82
  6. Step 6: Final answer
    x = 70,635.45

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