Home / 53,144.61-79,689.23-19,837.28

Finding the Fourth Proportional to 53,144.61, 79,689.23 and 19,837.28

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Solution

The fourth proportional to 53,144.61, 79,689.23 and 19,837.28 is: 29,745.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,144.61 : 79,689.23 = 19,837.28 : x
  2. Step 2: Convert to fraction form
    53,144.61/79,689.23 = 19,837.28/x
  3. Step 3: Cross multiply
    53,144.61x = 79,689.23 × 19,837.28
  4. Step 4: Simplify right side
    53,144.61x = 1,580,817,469.31
  5. Step 5: Solve for x
    x = 1,580,817,469.31/53,144.61
  6. Step 6: Final answer
    x = 29,745.59

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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.