Home / 53,221.42-79,834.56-18,161.38

Finding the Fourth Proportional to 53,221.42, 79,834.56 and 18,161.38

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Solution

The fourth proportional to 53,221.42, 79,834.56 and 18,161.38 is: 27,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,221.42 : 79,834.56 = 18,161.38 : x
  2. Step 2: Convert to fraction form
    53,221.42/79,834.56 = 18,161.38/x
  3. Step 3: Cross multiply
    53,221.42x = 79,834.56 × 18,161.38
  4. Step 4: Simplify right side
    53,221.42x = 1,449,905,781.29
  5. Step 5: Solve for x
    x = 1,449,905,781.29/53,221.42
  6. Step 6: Final answer
    x = 27,242.90

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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.