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Finding the Fourth Proportional to 41,204.80, 61,807.20 and 28,520.20

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Solution

The fourth proportional to 41,204.80, 61,807.20 and 28,520.20 is: 42,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,204.80 : 61,807.20 = 28,520.20 : x
  2. Step 2: Convert to fraction form
    41,204.80/61,807.20 = 28,520.20/x
  3. Step 3: Cross multiply
    41,204.80x = 61,807.20 × 28,520.20
  4. Step 4: Simplify right side
    41,204.80x = 1,762,753,705.44
  5. Step 5: Solve for x
    x = 1,762,753,705.44/41,204.80
  6. Step 6: Final answer
    x = 42,780.30

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1.5x scale

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.