Home / 80,849.66-121,274.49-30,945.06

Finding the Fourth Proportional to 80,849.66, 121,274.49 and 30,945.06

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Solution

The fourth proportional to 80,849.66, 121,274.49 and 30,945.06 is: 46,417.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,849.66 : 121,274.49 = 30,945.06 : x
  2. Step 2: Convert to fraction form
    80,849.66/121,274.49 = 30,945.06/x
  3. Step 3: Cross multiply
    80,849.66x = 121,274.49 × 30,945.06
  4. Step 4: Simplify right side
    80,849.66x = 3,752,846,369.52
  5. Step 5: Solve for x
    x = 3,752,846,369.52/80,849.66
  6. Step 6: Final answer
    x = 46,417.59

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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.