Home / 51,021-76,537.24-13,582.53

Finding the Fourth Proportional to 51,021, 76,537.24 and 13,582.53

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Solution

The fourth proportional to 51,021, 76,537.24 and 13,582.53 is: 20,375.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,021 : 76,537.24 = 13,582.53 : x
  2. Step 2: Convert to fraction form
    51,021/76,537.24 = 13,582.53/x
  3. Step 3: Cross multiply
    51,021x = 76,537.24 × 13,582.53
  4. Step 4: Simplify right side
    51,021x = 1,039,569,324.46
  5. Step 5: Solve for x
    x = 1,039,569,324.46/51,021
  6. Step 6: Final answer
    x = 20,375.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.