Home / 85,982.43-128,923.96-33,330.41

Finding the Fourth Proportional to 85,982.43, 128,923.96 and 33,330.41

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Solution

The fourth proportional to 85,982.43, 128,923.96 and 33,330.41 is: 49,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,982.43 : 128,923.96 = 33,330.41 : x
  2. Step 2: Convert to fraction form
    85,982.43/128,923.96 = 33,330.41/x
  3. Step 3: Cross multiply
    85,982.43x = 128,923.96 × 33,330.41
  4. Step 4: Simplify right side
    85,982.43x = 4,297,088,445.62
  5. Step 5: Solve for x
    x = 4,297,088,445.62/85,982.43
  6. Step 6: Final answer
    x = 49,976.36

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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.