Home / 49,745.85-74,552.94-20,128.59

Finding the Fourth Proportional to 49,745.85, 74,552.94 and 20,128.59

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Solution

The fourth proportional to 49,745.85, 74,552.94 and 20,128.59 is: 30,166.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,745.85 : 74,552.94 = 20,128.59 : x
  2. Step 2: Convert to fraction form
    49,745.85/74,552.94 = 20,128.59/x
  3. Step 3: Cross multiply
    49,745.85x = 74,552.94 × 20,128.59
  4. Step 4: Simplify right side
    49,745.85x = 1,500,645,562.55
  5. Step 5: Solve for x
    x = 1,500,645,562.55/49,745.85
  6. Step 6: Final answer
    x = 30,166.25

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1.5x scale

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.