Home / 80,799.37-121,207.33-30,921.42

Finding the Fourth Proportional to 80,799.37, 121,207.33 and 30,921.42

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Solution

The fourth proportional to 80,799.37, 121,207.33 and 30,921.42 is: 46,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,799.37 : 121,207.33 = 30,921.42 : x
  2. Step 2: Convert to fraction form
    80,799.37/121,207.33 = 30,921.42/x
  3. Step 3: Cross multiply
    80,799.37x = 121,207.33 × 30,921.42
  4. Step 4: Simplify right side
    80,799.37x = 3,747,902,758.01
  5. Step 5: Solve for x
    x = 3,747,902,758.01/80,799.37
  6. Step 6: Final answer
    x = 46,385.30

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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.