Home / 40,781.80-61,170.36-11,197.54

Finding the Fourth Proportional to 40,781.80, 61,170.36 and 11,197.54

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Solution

The fourth proportional to 40,781.80, 61,170.36 and 11,197.54 is: 16,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,781.80 : 61,170.36 = 11,197.54 : x
  2. Step 2: Convert to fraction form
    40,781.80/61,170.36 = 11,197.54/x
  3. Step 3: Cross multiply
    40,781.80x = 61,170.36 × 11,197.54
  4. Step 4: Simplify right side
    40,781.80x = 684,957,552.91
  5. Step 5: Solve for x
    x = 684,957,552.91/40,781.80
  6. Step 6: Final answer
    x = 16,795.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.