Home / 85,474.45-117,954.12-47,236.60

Finding the Fourth Proportional to 85,474.45, 117,954.12 and 47,236.60

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Solution

The fourth proportional to 85,474.45, 117,954.12 and 47,236.60 is: 65,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,474.45 : 117,954.12 = 47,236.60 : x
  2. Step 2: Convert to fraction form
    85,474.45/117,954.12 = 47,236.60/x
  3. Step 3: Cross multiply
    85,474.45x = 117,954.12 × 47,236.60
  4. Step 4: Simplify right side
    85,474.45x = 5,571,751,584.79
  5. Step 5: Solve for x
    x = 5,571,751,584.79/85,474.45
  6. Step 6: Final answer
    x = 65,186.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.