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Finding the Fourth Proportional to 57,234.90, 85,860.45 and 17,787.90

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Solution

The fourth proportional to 57,234.90, 85,860.45 and 17,787.90 is: 26,684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.90 : 85,860.45 = 17,787.90 : x
  2. Step 2: Convert to fraction form
    57,234.90/85,860.45 = 17,787.90/x
  3. Step 3: Cross multiply
    57,234.90x = 85,860.45 × 17,787.90
  4. Step 4: Simplify right side
    57,234.90x = 1,527,277,098.56
  5. Step 5: Solve for x
    x = 1,527,277,098.56/57,234.90
  6. Step 6: Final answer
    x = 26,684.37

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1.5x scale

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.