Home / 71,771.22-99,048.15-39,940.85

Finding the Fourth Proportional to 71,771.22, 99,048.15 and 39,940.85

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Solution

The fourth proportional to 71,771.22, 99,048.15 and 39,940.85 is: 55,120.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,771.22 : 99,048.15 = 39,940.85 : x
  2. Step 2: Convert to fraction form
    71,771.22/99,048.15 = 39,940.85/x
  3. Step 3: Cross multiply
    71,771.22x = 99,048.15 × 39,940.85
  4. Step 4: Simplify right side
    71,771.22x = 3,956,067,549.55
  5. Step 5: Solve for x
    x = 3,956,067,549.55/71,771.22
  6. Step 6: Final answer
    x = 55,120.53

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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.