Home / 38,471.10-57,706.65-36,138.30

Finding the Fourth Proportional to 38,471.10, 57,706.65 and 36,138.30

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Solution

The fourth proportional to 38,471.10, 57,706.65 and 36,138.30 is: 54,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,471.10 : 57,706.65 = 36,138.30 : x
  2. Step 2: Convert to fraction form
    38,471.10/57,706.65 = 36,138.30/x
  3. Step 3: Cross multiply
    38,471.10x = 57,706.65 × 36,138.30
  4. Step 4: Simplify right side
    38,471.10x = 2,085,420,229.70
  5. Step 5: Solve for x
    x = 2,085,420,229.70/38,471.10
  6. Step 6: Final answer
    x = 54,207.45

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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.