Home / 57,062.19-78,745.37-31,911.69

Finding the Fourth Proportional to 57,062.19, 78,745.37 and 31,911.69

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Solution

The fourth proportional to 57,062.19, 78,745.37 and 31,911.69 is: 44,037.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,062.19 : 78,745.37 = 31,911.69 : x
  2. Step 2: Convert to fraction form
    57,062.19/78,745.37 = 31,911.69/x
  3. Step 3: Cross multiply
    57,062.19x = 78,745.37 × 31,911.69
  4. Step 4: Simplify right side
    57,062.19x = 2,512,897,676.82
  5. Step 5: Solve for x
    x = 2,512,897,676.82/57,062.19
  6. Step 6: Final answer
    x = 44,037.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.