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Finding the Fourth Proportional to 57,124.98, 85,699.98 and 17,142.30

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Solution

The fourth proportional to 57,124.98, 85,699.98 and 17,142.30 is: 25,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,124.98 : 85,699.98 = 17,142.30 : x
  2. Step 2: Convert to fraction form
    57,124.98/85,699.98 = 17,142.30/x
  3. Step 3: Cross multiply
    57,124.98x = 85,699.98 × 17,142.30
  4. Step 4: Simplify right side
    57,124.98x = 1,469,094,767.15
  5. Step 5: Solve for x
    x = 1,469,094,767.15/57,124.98
  6. Step 6: Final answer
    x = 25,717.20

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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.