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Finding the Fourth Proportional to 172,289.83, 258,414.22 and 45,939.55

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Solution

The fourth proportional to 172,289.83, 258,414.22 and 45,939.55 is: 68,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,289.83 : 258,414.22 = 45,939.55 : x
  2. Step 2: Convert to fraction form
    172,289.83/258,414.22 = 45,939.55/x
  3. Step 3: Cross multiply
    172,289.83x = 258,414.22 × 45,939.55
  4. Step 4: Simplify right side
    172,289.83x = 11,871,432,980.40
  5. Step 5: Solve for x
    x = 11,871,432,980.40/172,289.83
  6. Step 6: Final answer
    x = 68,903.85

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