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Finding the Fourth Proportional to 66,804.10, 100,215.38 and 22,443.54

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Solution

The fourth proportional to 66,804.10, 100,215.38 and 22,443.54 is: 33,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,804.10 : 100,215.38 = 22,443.54 : x
  2. Step 2: Convert to fraction form
    66,804.10/100,215.38 = 22,443.54/x
  3. Step 3: Cross multiply
    66,804.10x = 100,215.38 × 22,443.54
  4. Step 4: Simplify right side
    66,804.10x = 2,249,188,290.37
  5. Step 5: Solve for x
    x = 2,249,188,290.37/66,804.10
  6. Step 6: Final answer
    x = 33,668.41

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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.