Home / 57,156.72-85,735.08-19,727.52

Finding the Fourth Proportional to 57,156.72, 85,735.08 and 19,727.52

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Solution

The fourth proportional to 57,156.72, 85,735.08 and 19,727.52 is: 29,591.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,156.72 : 85,735.08 = 19,727.52 : x
  2. Step 2: Convert to fraction form
    57,156.72/85,735.08 = 19,727.52/x
  3. Step 3: Cross multiply
    57,156.72x = 85,735.08 × 19,727.52
  4. Step 4: Simplify right side
    57,156.72x = 1,691,340,505.40
  5. Step 5: Solve for x
    x = 1,691,340,505.40/57,156.72
  6. Step 6: Final answer
    x = 29,591.28

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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.