Home / 80,016.24-120,024.40-20,851.76

Finding the Fourth Proportional to 80,016.24, 120,024.40 and 20,851.76

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Solution

The fourth proportional to 80,016.24, 120,024.40 and 20,851.76 is: 31,277.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,016.24 : 120,024.40 = 20,851.76 : x
  2. Step 2: Convert to fraction form
    80,016.24/120,024.40 = 20,851.76/x
  3. Step 3: Cross multiply
    80,016.24x = 120,024.40 × 20,851.76
  4. Step 4: Simplify right side
    80,016.24x = 2,502,719,982.94
  5. Step 5: Solve for x
    x = 2,502,719,982.94/80,016.24
  6. Step 6: Final answer
    x = 31,277.65

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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.