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Finding the Fourth Proportional to 74,761.38, 112,130.93 and 30,387.96

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Solution

The fourth proportional to 74,761.38, 112,130.93 and 30,387.96 is: 45,577.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,761.38 : 112,130.93 = 30,387.96 : x
  2. Step 2: Convert to fraction form
    74,761.38/112,130.93 = 30,387.96/x
  3. Step 3: Cross multiply
    74,761.38x = 112,130.93 × 30,387.96
  4. Step 4: Simplify right side
    74,761.38x = 3,407,430,291.57
  5. Step 5: Solve for x
    x = 3,407,430,291.57/74,761.38
  6. Step 6: Final answer
    x = 45,577.41

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