Home / 66,485.82-99,658.70-22,100.64

Finding the Fourth Proportional to 66,485.82, 99,658.70 and 22,100.64

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Solution

The fourth proportional to 66,485.82, 99,658.70 and 22,100.64 is: 33,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,485.82 : 99,658.70 = 22,100.64 : x
  2. Step 2: Convert to fraction form
    66,485.82/99,658.70 = 22,100.64/x
  3. Step 3: Cross multiply
    66,485.82x = 99,658.70 × 22,100.64
  4. Step 4: Simplify right side
    66,485.82x = 2,202,520,941.06
  5. Step 5: Solve for x
    x = 2,202,520,941.06/66,485.82
  6. Step 6: Final answer
    x = 33,127.68

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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.