Home / 45,408.09-68,114.69-13,819.18

Finding the Fourth Proportional to 45,408.09, 68,114.69 and 13,819.18

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Solution

The fourth proportional to 45,408.09, 68,114.69 and 13,819.18 is: 20,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,408.09 : 68,114.69 = 13,819.18 : x
  2. Step 2: Convert to fraction form
    45,408.09/68,114.69 = 13,819.18/x
  3. Step 3: Cross multiply
    45,408.09x = 68,114.69 × 13,819.18
  4. Step 4: Simplify right side
    45,408.09x = 941,288,974.19
  5. Step 5: Solve for x
    x = 941,288,974.19/45,408.09
  6. Step 6: Final answer
    x = 20,729.55

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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.