Home / 49,122.81-67,786.52-28,986

Finding the Fourth Proportional to 49,122.81, 67,786.52 and 28,986

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Solution

The fourth proportional to 49,122.81, 67,786.52 and 28,986 is: 39,998.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,122.81 : 67,786.52 = 28,986 : x
  2. Step 2: Convert to fraction form
    49,122.81/67,786.52 = 28,986/x
  3. Step 3: Cross multiply
    49,122.81x = 67,786.52 × 28,986
  4. Step 4: Simplify right side
    49,122.81x = 1,964,859,923.79
  5. Step 5: Solve for x
    x = 1,964,859,923.79/49,122.81
  6. Step 6: Final answer
    x = 39,998.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.