Home / 85,243.92-117,628.38-49,436.25

Finding the Fourth Proportional to 85,243.92, 117,628.38 and 49,436.25

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Solution

The fourth proportional to 85,243.92, 117,628.38 and 49,436.25 is: 68,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,243.92 : 117,628.38 = 49,436.25 : x
  2. Step 2: Convert to fraction form
    85,243.92/117,628.38 = 49,436.25/x
  3. Step 3: Cross multiply
    85,243.92x = 117,628.38 × 49,436.25
  4. Step 4: Simplify right side
    85,243.92x = 5,815,106,000.78
  5. Step 5: Solve for x
    x = 5,815,106,000.78/85,243.92
  6. Step 6: Final answer
    x = 68,217.25

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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.