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Finding the Fourth Proportional to 57,354.95, 86,044.37 and 28,907.89

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Solution

The fourth proportional to 57,354.95, 86,044.37 and 28,907.89 is: 43,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,354.95 : 86,044.37 = 28,907.89 : x
  2. Step 2: Convert to fraction form
    57,354.95/86,044.37 = 28,907.89/x
  3. Step 3: Cross multiply
    57,354.95x = 86,044.37 × 28,907.89
  4. Step 4: Simplify right side
    57,354.95x = 2,487,361,183.08
  5. Step 5: Solve for x
    x = 2,487,361,183.08/57,354.95
  6. Step 6: Final answer
    x = 43,367.86

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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.