Home / 39,781.04-54,906.22-25,235.84

Finding the Fourth Proportional to 39,781.04, 54,906.22 and 25,235.84

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Solution

The fourth proportional to 39,781.04, 54,906.22 and 25,235.84 is: 34,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.04 : 54,906.22 = 25,235.84 : x
  2. Step 2: Convert to fraction form
    39,781.04/54,906.22 = 25,235.84/x
  3. Step 3: Cross multiply
    39,781.04x = 54,906.22 × 25,235.84
  4. Step 4: Simplify right side
    39,781.04x = 1,385,604,582.92
  5. Step 5: Solve for x
    x = 1,385,604,582.92/39,781.04
  6. Step 6: Final answer
    x = 34,830.78

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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.