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Finding the Fourth Proportional to 66,811.10, 100,225.88 and 22,450.54

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Solution

The fourth proportional to 66,811.10, 100,225.88 and 22,450.54 is: 33,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,811.10 : 100,225.88 = 22,450.54 : x
  2. Step 2: Convert to fraction form
    66,811.10/100,225.88 = 22,450.54/x
  3. Step 3: Cross multiply
    66,811.10x = 100,225.88 × 22,450.54
  4. Step 4: Simplify right side
    66,811.10x = 2,250,125,127.98
  5. Step 5: Solve for x
    x = 2,250,125,127.98/66,811.10
  6. Step 6: Final answer
    x = 33,678.91

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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.