Home / 49,650.78-74,640.21-45,998.49

Finding the Fourth Proportional to 49,650.78, 74,640.21 and 45,998.49

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Solution

The fourth proportional to 49,650.78, 74,640.21 and 45,998.49 is: 69,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,650.78 : 74,640.21 = 45,998.49 : x
  2. Step 2: Convert to fraction form
    49,650.78/74,640.21 = 45,998.49/x
  3. Step 3: Cross multiply
    49,650.78x = 74,640.21 × 45,998.49
  4. Step 4: Simplify right side
    49,650.78x = 3,433,336,953.28
  5. Step 5: Solve for x
    x = 3,433,336,953.28/49,650.78
  6. Step 6: Final answer
    x = 69,149.71

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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.