Home / 87,582.06-131,400.54-31,383.72

Finding the Fourth Proportional to 87,582.06, 131,400.54 and 31,383.72

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Solution

The fourth proportional to 87,582.06, 131,400.54 and 31,383.72 is: 47,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,582.06 : 131,400.54 = 31,383.72 : x
  2. Step 2: Convert to fraction form
    87,582.06/131,400.54 = 31,383.72/x
  3. Step 3: Cross multiply
    87,582.06x = 131,400.54 × 31,383.72
  4. Step 4: Simplify right side
    87,582.06x = 4,123,837,755.21
  5. Step 5: Solve for x
    x = 4,123,837,755.21/87,582.06
  6. Step 6: Final answer
    x = 47,085.42

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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.