Home / 80,228.68-120,301.40-35,231.56

Finding the Fourth Proportional to 80,228.68, 120,301.40 and 35,231.56

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Solution

The fourth proportional to 80,228.68, 120,301.40 and 35,231.56 is: 52,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,228.68 : 120,301.40 = 35,231.56 : x
  2. Step 2: Convert to fraction form
    80,228.68/120,301.40 = 35,231.56/x
  3. Step 3: Cross multiply
    80,228.68x = 120,301.40 × 35,231.56
  4. Step 4: Simplify right side
    80,228.68x = 4,238,405,779.51
  5. Step 5: Solve for x
    x = 4,238,405,779.51/80,228.68
  6. Step 6: Final answer
    x = 52,829.06

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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.