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Finding the Fourth Proportional to 66,777, 100,165.49 and 26,814.23

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Solution

The fourth proportional to 66,777, 100,165.49 and 26,814.23 is: 40,221.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,777 : 100,165.49 = 26,814.23 : x
  2. Step 2: Convert to fraction form
    66,777/100,165.49 = 26,814.23/x
  3. Step 3: Cross multiply
    66,777x = 100,165.49 × 26,814.23
  4. Step 4: Simplify right side
    66,777x = 2,685,860,486.92
  5. Step 5: Solve for x
    x = 2,685,860,486.92/66,777
  6. Step 6: Final answer
    x = 40,221.34

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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.