Home / 80,405.06-120,618.52-27,818.64

Finding the Fourth Proportional to 80,405.06, 120,618.52 and 27,818.64

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Solution

The fourth proportional to 80,405.06, 120,618.52 and 27,818.64 is: 41,731.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,405.06 : 120,618.52 = 27,818.64 : x
  2. Step 2: Convert to fraction form
    80,405.06/120,618.52 = 27,818.64/x
  3. Step 3: Cross multiply
    80,405.06x = 120,618.52 × 27,818.64
  4. Step 4: Simplify right side
    80,405.06x = 3,355,443,115.67
  5. Step 5: Solve for x
    x = 3,355,443,115.67/80,405.06
  6. Step 6: Final answer
    x = 41,731.74

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1.5x scale

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.