Home / 57,269.45-85,883.60-19,819.36

Finding the Fourth Proportional to 57,269.45, 85,883.60 and 19,819.36

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Solution

The fourth proportional to 57,269.45, 85,883.60 and 19,819.36 is: 29,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,269.45 : 85,883.60 = 19,819.36 : x
  2. Step 2: Convert to fraction form
    57,269.45/85,883.60 = 19,819.36/x
  3. Step 3: Cross multiply
    57,269.45x = 85,883.60 × 19,819.36
  4. Step 4: Simplify right side
    57,269.45x = 1,702,157,672.69
  5. Step 5: Solve for x
    x = 1,702,157,672.69/57,269.45
  6. Step 6: Final answer
    x = 29,721.91

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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.