Home / 80,429.56-120,677.45-27,875.95

Finding the Fourth Proportional to 80,429.56, 120,677.45 and 27,875.95

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Solution

The fourth proportional to 80,429.56, 120,677.45 and 27,875.95 is: 41,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,429.56 : 120,677.45 = 27,875.95 : x
  2. Step 2: Convert to fraction form
    80,429.56/120,677.45 = 27,875.95/x
  3. Step 3: Cross multiply
    80,429.56x = 120,677.45 × 27,875.95
  4. Step 4: Simplify right side
    80,429.56x = 3,363,998,121.25
  5. Step 5: Solve for x
    x = 3,363,998,121.25/80,429.56
  6. Step 6: Final answer
    x = 41,825.40

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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.