Home / 80,555.69-120,834.75-27,966.85

Finding the Fourth Proportional to 80,555.69, 120,834.75 and 27,966.85

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Solution

The fourth proportional to 80,555.69, 120,834.75 and 27,966.85 is: 41,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,555.69 : 120,834.75 = 27,966.85 : x
  2. Step 2: Convert to fraction form
    80,555.69/120,834.75 = 27,966.85/x
  3. Step 3: Cross multiply
    80,555.69x = 120,834.75 × 27,966.85
  4. Step 4: Simplify right side
    80,555.69x = 3,379,367,328.04
  5. Step 5: Solve for x
    x = 3,379,367,328.04/80,555.69
  6. Step 6: Final answer
    x = 41,950.70

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1.5x scale

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.