Home / 71,121.48-98,150.45-40,906.75

Finding the Fourth Proportional to 71,121.48, 98,150.45 and 40,906.75

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Solution

The fourth proportional to 71,121.48, 98,150.45 and 40,906.75 is: 56,452.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,121.48 : 98,150.45 = 40,906.75 : x
  2. Step 2: Convert to fraction form
    71,121.48/98,150.45 = 40,906.75/x
  3. Step 3: Cross multiply
    71,121.48x = 98,150.45 × 40,906.75
  4. Step 4: Simplify right side
    71,121.48x = 4,015,015,920.54
  5. Step 5: Solve for x
    x = 4,015,015,920.54/71,121.48
  6. Step 6: Final answer
    x = 56,452.93

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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.