Home / 80,405.20-120,618.48-29,797.22

Finding the Fourth Proportional to 80,405.20, 120,618.48 and 29,797.22

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Solution

The fourth proportional to 80,405.20, 120,618.48 and 29,797.22 is: 44,699.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,405.20 : 120,618.48 = 29,797.22 : x
  2. Step 2: Convert to fraction form
    80,405.20/120,618.48 = 29,797.22/x
  3. Step 3: Cross multiply
    80,405.20x = 120,618.48 × 29,797.22
  4. Step 4: Simplify right side
    80,405.20x = 3,594,095,384.63
  5. Step 5: Solve for x
    x = 3,594,095,384.63/80,405.20
  6. Step 6: Final answer
    x = 44,699.79

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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.