Home / 80,339.72-120,520.06-29,731.86

Finding the Fourth Proportional to 80,339.72, 120,520.06 and 29,731.86

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Solution

The fourth proportional to 80,339.72, 120,520.06 and 29,731.86 is: 44,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,339.72 : 120,520.06 = 29,731.86 : x
  2. Step 2: Convert to fraction form
    80,339.72/120,520.06 = 29,731.86/x
  3. Step 3: Cross multiply
    80,339.72x = 120,520.06 × 29,731.86
  4. Step 4: Simplify right side
    80,339.72x = 3,583,285,476.78
  5. Step 5: Solve for x
    x = 3,583,285,476.78/80,339.72
  6. Step 6: Final answer
    x = 44,601.67

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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.