Home / 45,433.78-68,161.60-19,146.04

Finding the Fourth Proportional to 45,433.78, 68,161.60 and 19,146.04

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Solution

The fourth proportional to 45,433.78, 68,161.60 and 19,146.04 is: 28,723.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,433.78 : 68,161.60 = 19,146.04 : x
  2. Step 2: Convert to fraction form
    45,433.78/68,161.60 = 19,146.04/x
  3. Step 3: Cross multiply
    45,433.78x = 68,161.60 × 19,146.04
  4. Step 4: Simplify right side
    45,433.78x = 1,305,024,720.06
  5. Step 5: Solve for x
    x = 1,305,024,720.06/45,433.78
  6. Step 6: Final answer
    x = 28,723.67

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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.