Home / 90,640.06-125,083.17-50,357.54

Finding the Fourth Proportional to 90,640.06, 125,083.17 and 50,357.54

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Solution

The fourth proportional to 90,640.06, 125,083.17 and 50,357.54 is: 69,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,640.06 : 125,083.17 = 50,357.54 : x
  2. Step 2: Convert to fraction form
    90,640.06/125,083.17 = 50,357.54/x
  3. Step 3: Cross multiply
    90,640.06x = 125,083.17 × 50,357.54
  4. Step 4: Simplify right side
    90,640.06x = 6,298,880,736.60
  5. Step 5: Solve for x
    x = 6,298,880,736.60/90,640.06
  6. Step 6: Final answer
    x = 69,493.34

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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.