Home / 82,515.29-123,831.90-35,163.54

Finding the Fourth Proportional to 82,515.29, 123,831.90 and 35,163.54

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Solution

The fourth proportional to 82,515.29, 123,831.90 and 35,163.54 is: 52,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,515.29 : 123,831.90 = 35,163.54 : x
  2. Step 2: Convert to fraction form
    82,515.29/123,831.90 = 35,163.54/x
  3. Step 3: Cross multiply
    82,515.29x = 123,831.90 × 35,163.54
  4. Step 4: Simplify right side
    82,515.29x = 4,354,367,968.93
  5. Step 5: Solve for x
    x = 4,354,367,968.93/82,515.29
  6. Step 6: Final answer
    x = 52,770.44

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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.