Home / 76,571.27-114,862.37-20,411.09

Finding the Fourth Proportional to 76,571.27, 114,862.37 and 20,411.09

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Solution

The fourth proportional to 76,571.27, 114,862.37 and 20,411.09 is: 30,618.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,571.27 : 114,862.37 = 20,411.09 : x
  2. Step 2: Convert to fraction form
    76,571.27/114,862.37 = 20,411.09/x
  3. Step 3: Cross multiply
    76,571.27x = 114,862.37 × 20,411.09
  4. Step 4: Simplify right side
    76,571.27x = 2,344,465,791.98
  5. Step 5: Solve for x
    x = 2,344,465,791.98/76,571.27
  6. Step 6: Final answer
    x = 30,618.09

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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.