Home / 80,682.24-120,888.96-28,062.72

Finding the Fourth Proportional to 80,682.24, 120,888.96 and 28,062.72

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Solution

The fourth proportional to 80,682.24, 120,888.96 and 28,062.72 is: 42,047.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,682.24 : 120,888.96 = 28,062.72 : x
  2. Step 2: Convert to fraction form
    80,682.24/120,888.96 = 28,062.72/x
  3. Step 3: Cross multiply
    80,682.24x = 120,888.96 × 28,062.72
  4. Step 4: Simplify right side
    80,682.24x = 3,392,473,035.57
  5. Step 5: Solve for x
    x = 3,392,473,035.57/80,682.24
  6. Step 6: Final answer
    x = 42,047.33

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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.