Home / 80,206.14-120,527.31-42,792.65

Finding the Fourth Proportional to 80,206.14, 120,527.31 and 42,792.65

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Solution

The fourth proportional to 80,206.14, 120,527.31 and 42,792.65 is: 64,305.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,206.14 : 120,527.31 = 42,792.65 : x
  2. Step 2: Convert to fraction form
    80,206.14/120,527.31 = 42,792.65/x
  3. Step 3: Cross multiply
    80,206.14x = 120,527.31 × 42,792.65
  4. Step 4: Simplify right side
    80,206.14x = 5,157,682,175.67
  5. Step 5: Solve for x
    x = 5,157,682,175.67/80,206.14
  6. Step 6: Final answer
    x = 64,305.33

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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.