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Finding the Fourth Proportional to 66,977.98, 100,466.97 and 20,230.86

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Solution

The fourth proportional to 66,977.98, 100,466.97 and 20,230.86 is: 30,346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,977.98 : 100,466.97 = 20,230.86 : x
  2. Step 2: Convert to fraction form
    66,977.98/100,466.97 = 20,230.86/x
  3. Step 3: Cross multiply
    66,977.98x = 100,466.97 × 20,230.86
  4. Step 4: Simplify right side
    66,977.98x = 2,032,533,204.69
  5. Step 5: Solve for x
    x = 2,032,533,204.69/66,977.98
  6. Step 6: Final answer
    x = 30,346.29

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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.