Home / 56,638.82-84,939.60-19,189.28

Finding the Fourth Proportional to 56,638.82, 84,939.60 and 19,189.28

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Solution

The fourth proportional to 56,638.82, 84,939.60 and 19,189.28 is: 28,777.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,638.82 : 84,939.60 = 19,189.28 : x
  2. Step 2: Convert to fraction form
    56,638.82/84,939.60 = 19,189.28/x
  3. Step 3: Cross multiply
    56,638.82x = 84,939.60 × 19,189.28
  4. Step 4: Simplify right side
    56,638.82x = 1,629,929,767.49
  5. Step 5: Solve for x
    x = 1,629,929,767.49/56,638.82
  6. Step 6: Final answer
    x = 28,777.61

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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.