Home / 80,039.23-120,021.17-46,768.90

Finding the Fourth Proportional to 80,039.23, 120,021.17 and 46,768.90

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Solution

The fourth proportional to 80,039.23, 120,021.17 and 46,768.90 is: 70,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,039.23 : 120,021.17 = 46,768.90 : x
  2. Step 2: Convert to fraction form
    80,039.23/120,021.17 = 46,768.90/x
  3. Step 3: Cross multiply
    80,039.23x = 120,021.17 × 46,768.90
  4. Step 4: Simplify right side
    80,039.23x = 5,613,257,863.77
  5. Step 5: Solve for x
    x = 5,613,257,863.77/80,039.23
  6. Step 6: Final answer
    x = 70,131.33

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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.