Home / 84,361.16-126,586.90-54,772.04

Finding the Fourth Proportional to 84,361.16, 126,586.90 and 54,772.04

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Solution

The fourth proportional to 84,361.16, 126,586.90 and 54,772.04 is: 82,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,361.16 : 126,586.90 = 54,772.04 : x
  2. Step 2: Convert to fraction form
    84,361.16/126,586.90 = 54,772.04/x
  3. Step 3: Cross multiply
    84,361.16x = 126,586.90 × 54,772.04
  4. Step 4: Simplify right side
    84,361.16x = 6,933,422,750.28
  5. Step 5: Solve for x
    x = 6,933,422,750.28/84,361.16
  6. Step 6: Final answer
    x = 82,187.38

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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.