Home / 80,372.78-120,582.62-35,989.14

Finding the Fourth Proportional to 80,372.78, 120,582.62 and 35,989.14

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Solution

The fourth proportional to 80,372.78, 120,582.62 and 35,989.14 is: 53,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,372.78 : 120,582.62 = 35,989.14 : x
  2. Step 2: Convert to fraction form
    80,372.78/120,582.62 = 35,989.14/x
  3. Step 3: Cross multiply
    80,372.78x = 120,582.62 × 35,989.14
  4. Step 4: Simplify right side
    80,372.78x = 4,339,664,612.80
  5. Step 5: Solve for x
    x = 4,339,664,612.80/80,372.78
  6. Step 6: Final answer
    x = 53,994.21

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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.