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Finding the Fourth Proportional to 66,759.92, 100,156.26 and 20,012.76

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Solution

The fourth proportional to 66,759.92, 100,156.26 and 20,012.76 is: 30,024.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,759.92 : 100,156.26 = 20,012.76 : x
  2. Step 2: Convert to fraction form
    66,759.92/100,156.26 = 20,012.76/x
  3. Step 3: Cross multiply
    66,759.92x = 100,156.26 × 20,012.76
  4. Step 4: Simplify right side
    66,759.92x = 2,004,403,193.88
  5. Step 5: Solve for x
    x = 2,004,403,193.88/66,759.92
  6. Step 6: Final answer
    x = 30,024.05

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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.