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Finding the Fourth Proportional to 45,494.64, 68,249.28 and 19,203.30

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Solution

The fourth proportional to 45,494.64, 68,249.28 and 19,203.30 is: 28,808.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,494.64 : 68,249.28 = 19,203.30 : x
  2. Step 2: Convert to fraction form
    45,494.64/68,249.28 = 19,203.30/x
  3. Step 3: Cross multiply
    45,494.64x = 68,249.28 × 19,203.30
  4. Step 4: Simplify right side
    45,494.64x = 1,310,611,398.62
  5. Step 5: Solve for x
    x = 1,310,611,398.62/45,494.64
  6. Step 6: Final answer
    x = 28,808.04

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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.