Home / 77,974.05-107,604.11-42,163.97

Finding the Fourth Proportional to 77,974.05, 107,604.11 and 42,163.97

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Solution

The fourth proportional to 77,974.05, 107,604.11 and 42,163.97 is: 58,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,974.05 : 107,604.11 = 42,163.97 : x
  2. Step 2: Convert to fraction form
    77,974.05/107,604.11 = 42,163.97/x
  3. Step 3: Cross multiply
    77,974.05x = 107,604.11 × 42,163.97
  4. Step 4: Simplify right side
    77,974.05x = 4,537,016,465.92
  5. Step 5: Solve for x
    x = 4,537,016,465.92/77,974.05
  6. Step 6: Final answer
    x = 58,186.24

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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.