Home / 80,555.31-120,872.67-36,214.29

Finding the Fourth Proportional to 80,555.31, 120,872.67 and 36,214.29

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Solution

The fourth proportional to 80,555.31, 120,872.67 and 36,214.29 is: 54,339.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,555.31 : 120,872.67 = 36,214.29 : x
  2. Step 2: Convert to fraction form
    80,555.31/120,872.67 = 36,214.29/x
  3. Step 3: Cross multiply
    80,555.31x = 120,872.67 × 36,214.29
  4. Step 4: Simplify right side
    80,555.31x = 4,377,317,924.45
  5. Step 5: Solve for x
    x = 4,377,317,924.45/80,555.31
  6. Step 6: Final answer
    x = 54,339.28

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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.