Home / 80,617.27-120,960.74-30,712.36

Finding the Fourth Proportional to 80,617.27, 120,960.74 and 30,712.36

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Solution

The fourth proportional to 80,617.27, 120,960.74 and 30,712.36 is: 46,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,617.27 : 120,960.74 = 30,712.36 : x
  2. Step 2: Convert to fraction form
    80,617.27/120,960.74 = 30,712.36/x
  3. Step 3: Cross multiply
    80,617.27x = 120,960.74 × 30,712.36
  4. Step 4: Simplify right side
    80,617.27x = 3,714,989,792.75
  5. Step 5: Solve for x
    x = 3,714,989,792.75/80,617.27
  6. Step 6: Final answer
    x = 46,081.81

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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.