Home / 71,974.28-99,324.66-40,145.24

Finding the Fourth Proportional to 71,974.28, 99,324.66 and 40,145.24

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Solution

The fourth proportional to 71,974.28, 99,324.66 and 40,145.24 is: 55,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,974.28 : 99,324.66 = 40,145.24 : x
  2. Step 2: Convert to fraction form
    71,974.28/99,324.66 = 40,145.24/x
  3. Step 3: Cross multiply
    71,974.28x = 99,324.66 × 40,145.24
  4. Step 4: Simplify right side
    71,974.28x = 3,987,411,817.00
  5. Step 5: Solve for x
    x = 3,987,411,817.00/71,974.28
  6. Step 6: Final answer
    x = 55,400.51

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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.