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Finding the Fourth Proportional to 45,919.63, 68,879.44 and 18,217.63

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Solution

The fourth proportional to 45,919.63, 68,879.44 and 18,217.63 is: 27,326.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,919.63 : 68,879.44 = 18,217.63 : x
  2. Step 2: Convert to fraction form
    45,919.63/68,879.44 = 18,217.63/x
  3. Step 3: Cross multiply
    45,919.63x = 68,879.44 × 18,217.63
  4. Step 4: Simplify right side
    45,919.63x = 1,254,820,152.53
  5. Step 5: Solve for x
    x = 1,254,820,152.53/45,919.63
  6. Step 6: Final answer
    x = 27,326.44

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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.