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Finding the Fourth Proportional to 84,652.80, 127,033.20 and 40,329.60

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Solution

The fourth proportional to 84,652.80, 127,033.20 and 40,329.60 is: 60,520.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,652.80 : 127,033.20 = 40,329.60 : x
  2. Step 2: Convert to fraction form
    84,652.80/127,033.20 = 40,329.60/x
  3. Step 3: Cross multiply
    84,652.80x = 127,033.20 × 40,329.60
  4. Step 4: Simplify right side
    84,652.80x = 5,123,198,142.72
  5. Step 5: Solve for x
    x = 5,123,198,142.72/84,652.80
  6. Step 6: Final answer
    x = 60,520.13

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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.