Home / 80,407.20-120,621.48-29,799.22

Finding the Fourth Proportional to 80,407.20, 120,621.48 and 29,799.22

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Solution

The fourth proportional to 80,407.20, 120,621.48 and 29,799.22 is: 44,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,407.20 : 120,621.48 = 29,799.22 : x
  2. Step 2: Convert to fraction form
    80,407.20/120,621.48 = 29,799.22/x
  3. Step 3: Cross multiply
    80,407.20x = 120,621.48 × 29,799.22
  4. Step 4: Simplify right side
    80,407.20x = 3,594,426,019.25
  5. Step 5: Solve for x
    x = 3,594,426,019.25/80,407.20
  6. Step 6: Final answer
    x = 44,702.79

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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.