Home / 87,346.09-120,537-49,620.34

Finding the Fourth Proportional to 87,346.09, 120,537 and 49,620.34

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Solution

The fourth proportional to 87,346.09, 120,537 and 49,620.34 is: 68,475.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,346.09 : 120,537 = 49,620.34 : x
  2. Step 2: Convert to fraction form
    87,346.09/120,537 = 49,620.34/x
  3. Step 3: Cross multiply
    87,346.09x = 120,537 × 49,620.34
  4. Step 4: Simplify right side
    87,346.09x = 5,981,086,922.58
  5. Step 5: Solve for x
    x = 5,981,086,922.58/87,346.09
  6. Step 6: Final answer
    x = 68,475.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.