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Finding the Fourth Proportional to 45,781.80, 68,680.80 and 16,216.80

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Solution

The fourth proportional to 45,781.80, 68,680.80 and 16,216.80 is: 24,328.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,781.80 : 68,680.80 = 16,216.80 : x
  2. Step 2: Convert to fraction form
    45,781.80/68,680.80 = 16,216.80/x
  3. Step 3: Cross multiply
    45,781.80x = 68,680.80 × 16,216.80
  4. Step 4: Simplify right side
    45,781.80x = 1,113,782,797.44
  5. Step 5: Solve for x
    x = 1,113,782,797.44/45,781.80
  6. Step 6: Final answer
    x = 24,328.07

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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.