Home / 57,288.96-85,922.30-28,818.32

Finding the Fourth Proportional to 57,288.96, 85,922.30 and 28,818.32

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Solution

The fourth proportional to 57,288.96, 85,922.30 and 28,818.32 is: 43,221.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,288.96 : 85,922.30 = 28,818.32 : x
  2. Step 2: Convert to fraction form
    57,288.96/85,922.30 = 28,818.32/x
  3. Step 3: Cross multiply
    57,288.96x = 85,922.30 × 28,818.32
  4. Step 4: Simplify right side
    57,288.96x = 2,476,136,336.54
  5. Step 5: Solve for x
    x = 2,476,136,336.54/57,288.96
  6. Step 6: Final answer
    x = 43,221.88

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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.