Home / 80,582.33-120,831.96-36,171.01

Finding the Fourth Proportional to 80,582.33, 120,831.96 and 36,171.01

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Solution

The fourth proportional to 80,582.33, 120,831.96 and 36,171.01 is: 54,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,582.33 : 120,831.96 = 36,171.01 : x
  2. Step 2: Convert to fraction form
    80,582.33/120,831.96 = 36,171.01/x
  3. Step 3: Cross multiply
    80,582.33x = 120,831.96 × 36,171.01
  4. Step 4: Simplify right side
    80,582.33x = 4,370,614,116.70
  5. Step 5: Solve for x
    x = 4,370,614,116.70/80,582.33
  6. Step 6: Final answer
    x = 54,237.87

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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.