Home / 53,143.49-79,716.42-19,845.38

Finding the Fourth Proportional to 53,143.49, 79,716.42 and 19,845.38

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Solution

The fourth proportional to 53,143.49, 79,716.42 and 19,845.38 is: 29,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,143.49 : 79,716.42 = 19,845.38 : x
  2. Step 2: Convert to fraction form
    53,143.49/79,716.42 = 19,845.38/x
  3. Step 3: Cross multiply
    53,143.49x = 79,716.42 × 19,845.38
  4. Step 4: Simplify right side
    53,143.49x = 1,582,002,846.43
  5. Step 5: Solve for x
    x = 1,582,002,846.43/53,143.49
  6. Step 6: Final answer
    x = 29,768.52

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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.