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Finding the Fourth Proportional to 73,503.78, 110,255.70 and 18,099.78

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Solution

The fourth proportional to 73,503.78, 110,255.70 and 18,099.78 is: 27,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,503.78 : 110,255.70 = 18,099.78 : x
  2. Step 2: Convert to fraction form
    73,503.78/110,255.70 = 18,099.78/x
  3. Step 3: Cross multiply
    73,503.78x = 110,255.70 × 18,099.78
  4. Step 4: Simplify right side
    73,503.78x = 1,995,603,913.75
  5. Step 5: Solve for x
    x = 1,995,603,913.75/73,503.78
  6. Step 6: Final answer
    x = 27,149.68

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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.