Home / 49,961.52-74,961.72-45,879.12

Finding the Fourth Proportional to 49,961.52, 74,961.72 and 45,879.12

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Solution

The fourth proportional to 49,961.52, 74,961.72 and 45,879.12 is: 68,836.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,961.52 : 74,961.72 = 45,879.12 : x
  2. Step 2: Convert to fraction form
    49,961.52/74,961.72 = 45,879.12/x
  3. Step 3: Cross multiply
    49,961.52x = 74,961.72 × 45,879.12
  4. Step 4: Simplify right side
    49,961.52x = 3,439,177,747.29
  5. Step 5: Solve for x
    x = 3,439,177,747.29/49,961.52
  6. Step 6: Final answer
    x = 68,836.53

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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.