Home / 71,974.20-99,324.06-39,707.94

Finding the Fourth Proportional to 71,974.20, 99,324.06 and 39,707.94

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Solution

The fourth proportional to 71,974.20, 99,324.06 and 39,707.94 is: 54,796.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,974.20 : 99,324.06 = 39,707.94 : x
  2. Step 2: Convert to fraction form
    71,974.20/99,324.06 = 39,707.94/x
  3. Step 3: Cross multiply
    71,974.20x = 99,324.06 × 39,707.94
  4. Step 4: Simplify right side
    71,974.20x = 3,943,953,815.04
  5. Step 5: Solve for x
    x = 3,943,953,815.04/71,974.20
  6. Step 6: Final answer
    x = 54,796.77

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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.