Home / 87,809.63-131,714.46-21,249.77

Finding the Fourth Proportional to 87,809.63, 131,714.46 and 21,249.77

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Solution

The fourth proportional to 87,809.63, 131,714.46 and 21,249.77 is: 31,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,809.63 : 131,714.46 = 21,249.77 : x
  2. Step 2: Convert to fraction form
    87,809.63/131,714.46 = 21,249.77/x
  3. Step 3: Cross multiply
    87,809.63x = 131,714.46 × 21,249.77
  4. Step 4: Simplify right side
    87,809.63x = 2,798,902,309.96
  5. Step 5: Solve for x
    x = 2,798,902,309.96/87,809.63
  6. Step 6: Final answer
    x = 31,874.66

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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.