Home / 85,110.47-127,778.79-72,710.18

Finding the Fourth Proportional to 85,110.47, 127,778.79 and 72,710.18

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Solution

The fourth proportional to 85,110.47, 127,778.79 and 72,710.18 is: 109,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.47 : 127,778.79 = 72,710.18 : x
  2. Step 2: Convert to fraction form
    85,110.47/127,778.79 = 72,710.18/x
  3. Step 3: Cross multiply
    85,110.47x = 127,778.79 × 72,710.18
  4. Step 4: Simplify right side
    85,110.47x = 9,290,818,821.08
  5. Step 5: Solve for x
    x = 9,290,818,821.08/85,110.47
  6. Step 6: Final answer
    x = 109,161.88

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