Home / 71,761.24-99,034.40-39,930.83

Finding the Fourth Proportional to 71,761.24, 99,034.40 and 39,930.83

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Solution

The fourth proportional to 71,761.24, 99,034.40 and 39,930.83 is: 55,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,761.24 : 99,034.40 = 39,930.83 : x
  2. Step 2: Convert to fraction form
    71,761.24/99,034.40 = 39,930.83/x
  3. Step 3: Cross multiply
    71,761.24x = 99,034.40 × 39,930.83
  4. Step 4: Simplify right side
    71,761.24x = 3,954,525,790.55
  5. Step 5: Solve for x
    x = 3,954,525,790.55/71,761.24
  6. Step 6: Final answer
    x = 55,106.71

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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.