Home / 87,622-131,707.35-57,827.70

Finding the Fourth Proportional to 87,622, 131,707.35 and 57,827.70

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Solution

The fourth proportional to 87,622, 131,707.35 and 57,827.70 is: 86,922.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,622 : 131,707.35 = 57,827.70 : x
  2. Step 2: Convert to fraction form
    87,622/131,707.35 = 57,827.70/x
  3. Step 3: Cross multiply
    87,622x = 131,707.35 × 57,827.70
  4. Step 4: Simplify right side
    87,622x = 7,616,333,123.60
  5. Step 5: Solve for x
    x = 7,616,333,123.60/87,622
  6. Step 6: Final answer
    x = 86,922.61

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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.