Home / 80,269.18-120,411.69-27,671.74

Finding the Fourth Proportional to 80,269.18, 120,411.69 and 27,671.74

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Solution

The fourth proportional to 80,269.18, 120,411.69 and 27,671.74 is: 41,510.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,269.18 : 120,411.69 = 27,671.74 : x
  2. Step 2: Convert to fraction form
    80,269.18/120,411.69 = 27,671.74/x
  3. Step 3: Cross multiply
    80,269.18x = 120,411.69 × 27,671.74
  4. Step 4: Simplify right side
    80,269.18x = 3,332,000,978.64
  5. Step 5: Solve for x
    x = 3,332,000,978.64/80,269.18
  6. Step 6: Final answer
    x = 41,510.34

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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.