Home / 87,501.22-120,751.05-49,777.54

Finding the Fourth Proportional to 87,501.22, 120,751.05 and 49,777.54

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Solution

The fourth proportional to 87,501.22, 120,751.05 and 49,777.54 is: 68,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,501.22 : 120,751.05 = 49,777.54 : x
  2. Step 2: Convert to fraction form
    87,501.22/120,751.05 = 49,777.54/x
  3. Step 3: Cross multiply
    87,501.22x = 120,751.05 × 49,777.54
  4. Step 4: Simplify right side
    87,501.22x = 6,010,690,221.42
  5. Step 5: Solve for x
    x = 6,010,690,221.42/87,501.22
  6. Step 6: Final answer
    x = 68,692.64

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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.