Home / 87,559.72-120,820.26-49,312.84

Finding the Fourth Proportional to 87,559.72, 120,820.26 and 49,312.84

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Solution

The fourth proportional to 87,559.72, 120,820.26 and 49,312.84 is: 68,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,559.72 : 120,820.26 = 49,312.84 : x
  2. Step 2: Convert to fraction form
    87,559.72/120,820.26 = 49,312.84/x
  3. Step 3: Cross multiply
    87,559.72x = 120,820.26 × 49,312.84
  4. Step 4: Simplify right side
    87,559.72x = 5,957,990,150.14
  5. Step 5: Solve for x
    x = 5,957,990,150.14/87,559.72
  6. Step 6: Final answer
    x = 68,044.87

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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.