Home / 87,590.25-120,874.68-49,864.50

Finding the Fourth Proportional to 87,590.25, 120,874.68 and 49,864.50

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Solution

The fourth proportional to 87,590.25, 120,874.68 and 49,864.50 is: 68,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,590.25 : 120,874.68 = 49,864.50 : x
  2. Step 2: Convert to fraction form
    87,590.25/120,874.68 = 49,864.50/x
  3. Step 3: Cross multiply
    87,590.25x = 120,874.68 × 49,864.50
  4. Step 4: Simplify right side
    87,590.25x = 6,027,355,480.86
  5. Step 5: Solve for x
    x = 6,027,355,480.86/87,590.25
  6. Step 6: Final answer
    x = 68,813.09

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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.