Home / 87,249.13-130,899.97-31,081.91

Finding the Fourth Proportional to 87,249.13, 130,899.97 and 31,081.91

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Solution

The fourth proportional to 87,249.13, 130,899.97 and 31,081.91 is: 46,632.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,249.13 : 130,899.97 = 31,081.91 : x
  2. Step 2: Convert to fraction form
    87,249.13/130,899.97 = 31,081.91/x
  3. Step 3: Cross multiply
    87,249.13x = 130,899.97 × 31,081.91
  4. Step 4: Simplify right side
    87,249.13x = 4,068,620,354.34
  5. Step 5: Solve for x
    x = 4,068,620,354.34/87,249.13
  6. Step 6: Final answer
    x = 46,632.22

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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.