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Finding the Fourth Proportional to 57,548.61, 86,160.60 and 30,469.59

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Solution

The fourth proportional to 57,548.61, 86,160.60 and 30,469.59 is: 45,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,548.61 : 86,160.60 = 30,469.59 : x
  2. Step 2: Convert to fraction form
    57,548.61/86,160.60 = 30,469.59/x
  3. Step 3: Cross multiply
    57,548.61x = 86,160.60 × 30,469.59
  4. Step 4: Simplify right side
    57,548.61x = 2,625,278,156.15
  5. Step 5: Solve for x
    x = 2,625,278,156.15/57,548.61
  6. Step 6: Final answer
    x = 45,618.45

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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.