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Finding the Fourth Proportional to 66,800.67, 100,200.69 and 16,880.88

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Solution

The fourth proportional to 66,800.67, 100,200.69 and 16,880.88 is: 25,321.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,800.67 : 100,200.69 = 16,880.88 : x
  2. Step 2: Convert to fraction form
    66,800.67/100,200.69 = 16,880.88/x
  3. Step 3: Cross multiply
    66,800.67x = 100,200.69 × 16,880.88
  4. Step 4: Simplify right side
    66,800.67x = 1,691,475,823.81
  5. Step 5: Solve for x
    x = 1,691,475,823.81/66,800.67
  6. Step 6: Final answer
    x = 25,321.24

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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.