Home / 87,792.91-131,710.32-28,628.65

Finding the Fourth Proportional to 87,792.91, 131,710.32 and 28,628.65

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Solution

The fourth proportional to 87,792.91, 131,710.32 and 28,628.65 is: 42,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,792.91 : 131,710.32 = 28,628.65 : x
  2. Step 2: Convert to fraction form
    87,792.91/131,710.32 = 28,628.65/x
  3. Step 3: Cross multiply
    87,792.91x = 131,710.32 × 28,628.65
  4. Step 4: Simplify right side
    87,792.91x = 3,770,688,652.67
  5. Step 5: Solve for x
    x = 3,770,688,652.67/87,792.91
  6. Step 6: Final answer
    x = 42,949.81

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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.