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Finding the Fourth Proportional to 57,292.30, 85,907.87 and 19,842.76

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Solution

The fourth proportional to 57,292.30, 85,907.87 and 19,842.76 is: 29,753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,292.30 : 85,907.87 = 19,842.76 : x
  2. Step 2: Convert to fraction form
    57,292.30/85,907.87 = 19,842.76/x
  3. Step 3: Cross multiply
    57,292.30x = 85,907.87 × 19,842.76
  4. Step 4: Simplify right side
    57,292.30x = 1,704,649,246.52
  5. Step 5: Solve for x
    x = 1,704,649,246.52/57,292.30
  6. Step 6: Final answer
    x = 29,753.55

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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.