Home / 87,306.69-120,486.42-49,067.01

Finding the Fourth Proportional to 87,306.69, 120,486.42 and 49,067.01

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Solution

The fourth proportional to 87,306.69, 120,486.42 and 49,067.01 is: 67,714.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,306.69 : 120,486.42 = 49,067.01 : x
  2. Step 2: Convert to fraction form
    87,306.69/120,486.42 = 49,067.01/x
  3. Step 3: Cross multiply
    87,306.69x = 120,486.42 × 49,067.01
  4. Step 4: Simplify right side
    87,306.69x = 5,911,908,375.00
  5. Step 5: Solve for x
    x = 5,911,908,375.00/87,306.69
  6. Step 6: Final answer
    x = 67,714.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.