Home / 87,669.86-131,486.54-30,751.34

Finding the Fourth Proportional to 87,669.86, 131,486.54 and 30,751.34

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Solution

The fourth proportional to 87,669.86, 131,486.54 and 30,751.34 is: 46,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,669.86 : 131,486.54 = 30,751.34 : x
  2. Step 2: Convert to fraction form
    87,669.86/131,486.54 = 30,751.34/x
  3. Step 3: Cross multiply
    87,669.86x = 131,486.54 × 30,751.34
  4. Step 4: Simplify right side
    87,669.86x = 4,043,387,296.96
  5. Step 5: Solve for x
    x = 4,043,387,296.96/87,669.86
  6. Step 6: Final answer
    x = 46,120.61

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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.