Home / 83,828.19-125,757.81-27,672.21

Finding the Fourth Proportional to 83,828.19, 125,757.81 and 27,672.21

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Solution

The fourth proportional to 83,828.19, 125,757.81 and 27,672.21 is: 41,513.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,828.19 : 125,757.81 = 27,672.21 : x
  2. Step 2: Convert to fraction form
    83,828.19/125,757.81 = 27,672.21/x
  3. Step 3: Cross multiply
    83,828.19x = 125,757.81 × 27,672.21
  4. Step 4: Simplify right side
    83,828.19x = 3,479,996,527.46
  5. Step 5: Solve for x
    x = 3,479,996,527.46/83,828.19
  6. Step 6: Final answer
    x = 41,513.44

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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.