Home / 82,161.35-113,451.78-51,999.89

Finding the Fourth Proportional to 82,161.35, 113,451.78 and 51,999.89

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Solution

The fourth proportional to 82,161.35, 113,451.78 and 51,999.89 is: 71,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,161.35 : 113,451.78 = 51,999.89 : x
  2. Step 2: Convert to fraction form
    82,161.35/113,451.78 = 51,999.89/x
  3. Step 3: Cross multiply
    82,161.35x = 113,451.78 × 51,999.89
  4. Step 4: Simplify right side
    82,161.35x = 5,899,479,708.04
  5. Step 5: Solve for x
    x = 5,899,479,708.04/82,161.35
  6. Step 6: Final answer
    x = 71,803.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.