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Finding the Fourth Proportional to 74,272.19, 111,226.55 and 67,075.56

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Solution

The fourth proportional to 74,272.19, 111,226.55 and 67,075.56 is: 100,449.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.19 : 111,226.55 = 67,075.56 : x
  2. Step 2: Convert to fraction form
    74,272.19/111,226.55 = 67,075.56/x
  3. Step 3: Cross multiply
    74,272.19x = 111,226.55 × 67,075.56
  4. Step 4: Simplify right side
    74,272.19x = 7,460,582,792.74
  5. Step 5: Solve for x
    x = 7,460,582,792.74/74,272.19
  6. Step 6: Final answer
    x = 100,449.22

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