Home / 57,257.28-85,889.16-17,813.52

Finding the Fourth Proportional to 57,257.28, 85,889.16 and 17,813.52

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Solution

The fourth proportional to 57,257.28, 85,889.16 and 17,813.52 is: 26,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,257.28 : 85,889.16 = 17,813.52 : x
  2. Step 2: Convert to fraction form
    57,257.28/85,889.16 = 17,813.52/x
  3. Step 3: Cross multiply
    57,257.28x = 85,889.16 × 17,813.52
  4. Step 4: Simplify right side
    57,257.28x = 1,529,988,269.44
  5. Step 5: Solve for x
    x = 1,529,988,269.44/57,257.28
  6. Step 6: Final answer
    x = 26,721.29

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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.