Home / 80,118.77-120,093.40-30,177.25

Finding the Fourth Proportional to 80,118.77, 120,093.40 and 30,177.25

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Solution

The fourth proportional to 80,118.77, 120,093.40 and 30,177.25 is: 45,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,118.77 : 120,093.40 = 30,177.25 : x
  2. Step 2: Convert to fraction form
    80,118.77/120,093.40 = 30,177.25/x
  3. Step 3: Cross multiply
    80,118.77x = 120,093.40 × 30,177.25
  4. Step 4: Simplify right side
    80,118.77x = 3,624,088,179.47
  5. Step 5: Solve for x
    x = 3,624,088,179.47/80,118.77
  6. Step 6: Final answer
    x = 45,233.95

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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.