Home / 71,121.22-98,150.11-40,906.51

Finding the Fourth Proportional to 71,121.22, 98,150.11 and 40,906.51

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Solution

The fourth proportional to 71,121.22, 98,150.11 and 40,906.51 is: 56,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,121.22 : 98,150.11 = 40,906.51 : x
  2. Step 2: Convert to fraction form
    71,121.22/98,150.11 = 40,906.51/x
  3. Step 3: Cross multiply
    71,121.22x = 98,150.11 × 40,906.51
  4. Step 4: Simplify right side
    71,121.22x = 4,014,978,108.57
  5. Step 5: Solve for x
    x = 4,014,978,108.57/71,121.22
  6. Step 6: Final answer
    x = 56,452.61

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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.