Home / 85,217.40-117,608.76-51,236.96

Finding the Fourth Proportional to 85,217.40, 117,608.76 and 51,236.96

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Solution

The fourth proportional to 85,217.40, 117,608.76 and 51,236.96 is: 70,712.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,217.40 : 117,608.76 = 51,236.96 : x
  2. Step 2: Convert to fraction form
    85,217.40/117,608.76 = 51,236.96/x
  3. Step 3: Cross multiply
    85,217.40x = 117,608.76 × 51,236.96
  4. Step 4: Simplify right side
    85,217.40x = 6,025,914,743.73
  5. Step 5: Solve for x
    x = 6,025,914,743.73/85,217.40
  6. Step 6: Final answer
    x = 70,712.26

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1.5x scale

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.