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Finding the Fourth Proportional to 57,571.92, 86,218.56 and 47,638.08

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Solution

The fourth proportional to 57,571.92, 86,218.56 and 47,638.08 is: 71,341.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,571.92 : 86,218.56 = 47,638.08 : x
  2. Step 2: Convert to fraction form
    57,571.92/86,218.56 = 47,638.08/x
  3. Step 3: Cross multiply
    57,571.92x = 86,218.56 × 47,638.08
  4. Step 4: Simplify right side
    57,571.92x = 4,107,286,658.76
  5. Step 5: Solve for x
    x = 4,107,286,658.76/57,571.92
  6. Step 6: Final answer
    x = 71,341.84

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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.