Home / 66,121.58-99,196.94-21,746.54

Finding the Fourth Proportional to 66,121.58, 99,196.94 and 21,746.54

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Solution

The fourth proportional to 66,121.58, 99,196.94 and 21,746.54 is: 32,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,121.58 : 99,196.94 = 21,746.54 : x
  2. Step 2: Convert to fraction form
    66,121.58/99,196.94 = 21,746.54/x
  3. Step 3: Cross multiply
    66,121.58x = 99,196.94 × 21,746.54
  4. Step 4: Simplify right side
    66,121.58x = 2,157,189,781.97
  5. Step 5: Solve for x
    x = 2,157,189,781.97/66,121.58
  6. Step 6: Final answer
    x = 32,624.60

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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.