Home / 87,590.98-131,544.86-80,920.29

Finding the Fourth Proportional to 87,590.98, 131,544.86 and 80,920.29

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Solution

The fourth proportional to 87,590.98, 131,544.86 and 80,920.29 is: 121,526.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,590.98 : 131,544.86 = 80,920.29 : x
  2. Step 2: Convert to fraction form
    87,590.98/131,544.86 = 80,920.29/x
  3. Step 3: Cross multiply
    87,590.98x = 131,544.86 × 80,920.29
  4. Step 4: Simplify right side
    87,590.98x = 10,644,648,219.21
  5. Step 5: Solve for x
    x = 10,644,648,219.21/87,590.98
  6. Step 6: Final answer
    x = 121,526.76

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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.