Home / 80,849.91-121,274.87-30,945.31

Finding the Fourth Proportional to 80,849.91, 121,274.87 and 30,945.31

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Solution

The fourth proportional to 80,849.91, 121,274.87 and 30,945.31 is: 46,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,849.91 : 121,274.87 = 30,945.31 : x
  2. Step 2: Convert to fraction form
    80,849.91/121,274.87 = 30,945.31/x
  3. Step 3: Cross multiply
    80,849.91x = 121,274.87 × 30,945.31
  4. Step 4: Simplify right side
    80,849.91x = 3,752,888,447.36
  5. Step 5: Solve for x
    x = 3,752,888,447.36/80,849.91
  6. Step 6: Final answer
    x = 46,417.97

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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.