Home / 82,262.86-123,378.69-40,100.57

Finding the Fourth Proportional to 82,262.86, 123,378.69 and 40,100.57

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Solution

The fourth proportional to 82,262.86, 123,378.69 and 40,100.57 is: 60,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,262.86 : 123,378.69 = 40,100.57 : x
  2. Step 2: Convert to fraction form
    82,262.86/123,378.69 = 40,100.57/x
  3. Step 3: Cross multiply
    82,262.86x = 123,378.69 × 40,100.57
  4. Step 4: Simplify right side
    82,262.86x = 4,947,555,794.85
  5. Step 5: Solve for x
    x = 4,947,555,794.85/82,262.86
  6. Step 6: Final answer
    x = 60,143.25

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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.