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Finding the Fourth Proportional to 66,512.03, 99,692.72 and 22,128.35

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Solution

The fourth proportional to 66,512.03, 99,692.72 and 22,128.35 is: 33,167.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512.03 : 99,692.72 = 22,128.35 : x
  2. Step 2: Convert to fraction form
    66,512.03/99,692.72 = 22,128.35/x
  3. Step 3: Cross multiply
    66,512.03x = 99,692.72 × 22,128.35
  4. Step 4: Simplify right side
    66,512.03x = 2,206,035,289.97
  5. Step 5: Solve for x
    x = 2,206,035,289.97/66,512.03
  6. Step 6: Final answer
    x = 33,167.46

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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.