Home / 36,531.15-54,748.28-18,761.09

Finding the Fourth Proportional to 36,531.15, 54,748.28 and 18,761.09

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Solution

The fourth proportional to 36,531.15, 54,748.28 and 18,761.09 is: 28,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,531.15 : 54,748.28 = 18,761.09 : x
  2. Step 2: Convert to fraction form
    36,531.15/54,748.28 = 18,761.09/x
  3. Step 3: Cross multiply
    36,531.15x = 54,748.28 × 18,761.09
  4. Step 4: Simplify right side
    36,531.15x = 1,027,137,408.43
  5. Step 5: Solve for x
    x = 1,027,137,408.43/36,531.15
  6. Step 6: Final answer
    x = 28,116.76

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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.