Home / 80,660.24-120,881.38-30,713.09

Finding the Fourth Proportional to 80,660.24, 120,881.38 and 30,713.09

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Solution

The fourth proportional to 80,660.24, 120,881.38 and 30,713.09 is: 46,028.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,660.24 : 120,881.38 = 30,713.09 : x
  2. Step 2: Convert to fraction form
    80,660.24/120,881.38 = 30,713.09/x
  3. Step 3: Cross multiply
    80,660.24x = 120,881.38 × 30,713.09
  4. Step 4: Simplify right side
    80,660.24x = 3,712,641,100.29
  5. Step 5: Solve for x
    x = 3,712,641,100.29/80,660.24
  6. Step 6: Final answer
    x = 46,028.14

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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.