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Finding the Fourth Proportional to 56,147.40, 84,220.92 and 38,563.92

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Solution

The fourth proportional to 56,147.40, 84,220.92 and 38,563.92 is: 57,845.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,147.40 : 84,220.92 = 38,563.92 : x
  2. Step 2: Convert to fraction form
    56,147.40/84,220.92 = 38,563.92/x
  3. Step 3: Cross multiply
    56,147.40x = 84,220.92 × 38,563.92
  4. Step 4: Simplify right side
    56,147.40x = 3,247,888,821.21
  5. Step 5: Solve for x
    x = 3,247,888,821.21/56,147.40
  6. Step 6: Final answer
    x = 57,845.76

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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.