Home / 80,411.22-120,672.18-36,087.54

Finding the Fourth Proportional to 80,411.22, 120,672.18 and 36,087.54

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Solution

The fourth proportional to 80,411.22, 120,672.18 and 36,087.54 is: 54,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,411.22 : 120,672.18 = 36,087.54 : x
  2. Step 2: Convert to fraction form
    80,411.22/120,672.18 = 36,087.54/x
  3. Step 3: Cross multiply
    80,411.22x = 120,672.18 × 36,087.54
  4. Step 4: Simplify right side
    80,411.22x = 4,354,762,122.64
  5. Step 5: Solve for x
    x = 4,354,762,122.64/80,411.22
  6. Step 6: Final answer
    x = 54,156.15

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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.