Home / 85,489.18-117,979.56-51,508.34

Finding the Fourth Proportional to 85,489.18, 117,979.56 and 51,508.34

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Solution

The fourth proportional to 85,489.18, 117,979.56 and 51,508.34 is: 71,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,489.18 : 117,979.56 = 51,508.34 : x
  2. Step 2: Convert to fraction form
    85,489.18/117,979.56 = 51,508.34/x
  3. Step 3: Cross multiply
    85,489.18x = 117,979.56 × 51,508.34
  4. Step 4: Simplify right side
    85,489.18x = 6,076,931,289.53
  5. Step 5: Solve for x
    x = 6,076,931,289.53/85,489.18
  6. Step 6: Final answer
    x = 71,084.22

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