Home / 33,102.45-49,653.21-8,142.72

Finding the Fourth Proportional to 33,102.45, 49,653.21 and 8,142.72

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Solution

The fourth proportional to 33,102.45, 49,653.21 and 8,142.72 is: 12,213.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,102.45 : 49,653.21 = 8,142.72 : x
  2. Step 2: Convert to fraction form
    33,102.45/49,653.21 = 8,142.72/x
  3. Step 3: Cross multiply
    33,102.45x = 49,653.21 × 8,142.72
  4. Step 4: Simplify right side
    33,102.45x = 404,312,186.13
  5. Step 5: Solve for x
    x = 404,312,186.13/33,102.45
  6. Step 6: Final answer
    x = 12,213.97

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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.