Home / 80,553.69-120,831.75-27,964.85

Finding the Fourth Proportional to 80,553.69, 120,831.75 and 27,964.85

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Solution

The fourth proportional to 80,553.69, 120,831.75 and 27,964.85 is: 41,947.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,553.69 : 120,831.75 = 27,964.85 : x
  2. Step 2: Convert to fraction form
    80,553.69/120,831.75 = 27,964.85/x
  3. Step 3: Cross multiply
    80,553.69x = 120,831.75 × 27,964.85
  4. Step 4: Simplify right side
    80,553.69x = 3,379,041,159.83
  5. Step 5: Solve for x
    x = 3,379,041,159.83/80,553.69
  6. Step 6: Final answer
    x = 41,947.69

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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.