Home / 53,218.23-79,839.09-15,781.29

Finding the Fourth Proportional to 53,218.23, 79,839.09 and 15,781.29

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Solution

The fourth proportional to 53,218.23, 79,839.09 and 15,781.29 is: 23,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,218.23 : 79,839.09 = 15,781.29 : x
  2. Step 2: Convert to fraction form
    53,218.23/79,839.09 = 15,781.29/x
  3. Step 3: Cross multiply
    53,218.23x = 79,839.09 × 15,781.29
  4. Step 4: Simplify right side
    53,218.23x = 1,259,963,832.63
  5. Step 5: Solve for x
    x = 1,259,963,832.63/53,218.23
  6. Step 6: Final answer
    x = 23,675.42

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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.