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Finding the Fourth Proportional to 45,418.06, 68,104.19 and 13,822.06

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Solution

The fourth proportional to 45,418.06, 68,104.19 and 13,822.06 is: 20,726.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.06 : 68,104.19 = 13,822.06 : x
  2. Step 2: Convert to fraction form
    45,418.06/68,104.19 = 13,822.06/x
  3. Step 3: Cross multiply
    45,418.06x = 68,104.19 × 13,822.06
  4. Step 4: Simplify right side
    45,418.06x = 941,340,200.43
  5. Step 5: Solve for x
    x = 941,340,200.43/45,418.06
  6. Step 6: Final answer
    x = 20,726.12

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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.