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Finding the Fourth Proportional to 66,785.22, 100,168.02 and 25,222.50

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Solution

The fourth proportional to 66,785.22, 100,168.02 and 25,222.50 is: 37,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,785.22 : 100,168.02 = 25,222.50 : x
  2. Step 2: Convert to fraction form
    66,785.22/100,168.02 = 25,222.50/x
  3. Step 3: Cross multiply
    66,785.22x = 100,168.02 × 25,222.50
  4. Step 4: Simplify right side
    66,785.22x = 2,526,487,884.45
  5. Step 5: Solve for x
    x = 2,526,487,884.45/66,785.22
  6. Step 6: Final answer
    x = 37,830.05

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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.