Home / 87,676.40-131,568.60-37,780.40

Finding the Fourth Proportional to 87,676.40, 131,568.60 and 37,780.40

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Solution

The fourth proportional to 87,676.40, 131,568.60 and 37,780.40 is: 56,693.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,676.40 : 131,568.60 = 37,780.40 : x
  2. Step 2: Convert to fraction form
    87,676.40/131,568.60 = 37,780.40/x
  3. Step 3: Cross multiply
    87,676.40x = 131,568.60 × 37,780.40
  4. Step 4: Simplify right side
    87,676.40x = 4,970,714,335.44
  5. Step 5: Solve for x
    x = 4,970,714,335.44/87,676.40
  6. Step 6: Final answer
    x = 56,693.87

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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.