Home / 45,861.78-68,781.12-17,772.21

Finding the Fourth Proportional to 45,861.78, 68,781.12 and 17,772.21

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Solution

The fourth proportional to 45,861.78, 68,781.12 and 17,772.21 is: 26,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,861.78 : 68,781.12 = 17,772.21 : x
  2. Step 2: Convert to fraction form
    45,861.78/68,781.12 = 17,772.21/x
  3. Step 3: Cross multiply
    45,861.78x = 68,781.12 × 17,772.21
  4. Step 4: Simplify right side
    45,861.78x = 1,222,392,508.68
  5. Step 5: Solve for x
    x = 1,222,392,508.68/45,861.78
  6. Step 6: Final answer
    x = 26,653.84

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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.