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Finding the Fourth Proportional to 66,749.74, 100,134.33 and 20,006.26

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Solution

The fourth proportional to 66,749.74, 100,134.33 and 20,006.26 is: 30,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,749.74 : 100,134.33 = 20,006.26 : x
  2. Step 2: Convert to fraction form
    66,749.74/100,134.33 = 20,006.26/x
  3. Step 3: Cross multiply
    66,749.74x = 100,134.33 × 20,006.26
  4. Step 4: Simplify right side
    66,749.74x = 2,003,313,440.91
  5. Step 5: Solve for x
    x = 2,003,313,440.91/66,749.74
  6. Step 6: Final answer
    x = 30,012.30

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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.