Home / 72,849.46-109,228.92-30,707.86

Finding the Fourth Proportional to 72,849.46, 109,228.92 and 30,707.86

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Solution

The fourth proportional to 72,849.46, 109,228.92 and 30,707.86 is: 46,042.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,849.46 : 109,228.92 = 30,707.86 : x
  2. Step 2: Convert to fraction form
    72,849.46/109,228.92 = 30,707.86/x
  3. Step 3: Cross multiply
    72,849.46x = 109,228.92 × 30,707.86
  4. Step 4: Simplify right side
    72,849.46x = 3,354,186,383.31
  5. Step 5: Solve for x
    x = 3,354,186,383.31/72,849.46
  6. Step 6: Final answer
    x = 46,042.71

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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.