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Finding the Fourth Proportional to 57,852, 86,765.04 and 28,255.68

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Solution

The fourth proportional to 57,852, 86,765.04 and 28,255.68 is: 42,377.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,852 : 86,765.04 = 28,255.68 : x
  2. Step 2: Convert to fraction form
    57,852/86,765.04 = 28,255.68/x
  3. Step 3: Cross multiply
    57,852x = 86,765.04 × 28,255.68
  4. Step 4: Simplify right side
    57,852x = 2,451,605,205.43
  5. Step 5: Solve for x
    x = 2,451,605,205.43/57,852
  6. Step 6: Final answer
    x = 42,377.19

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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.