Home / 80,614.27-120,956.24-30,709.36

Finding the Fourth Proportional to 80,614.27, 120,956.24 and 30,709.36

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Solution

The fourth proportional to 80,614.27, 120,956.24 and 30,709.36 is: 46,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,614.27 : 120,956.24 = 30,709.36 : x
  2. Step 2: Convert to fraction form
    80,614.27/120,956.24 = 30,709.36/x
  3. Step 3: Cross multiply
    80,614.27x = 120,956.24 × 30,709.36
  4. Step 4: Simplify right side
    80,614.27x = 3,714,488,718.41
  5. Step 5: Solve for x
    x = 3,714,488,718.41/80,614.27
  6. Step 6: Final answer
    x = 46,077.31

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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.