Home / 66,628.85-99,958.94-21,650.04

Finding the Fourth Proportional to 66,628.85, 99,958.94 and 21,650.04

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Solution

The fourth proportional to 66,628.85, 99,958.94 and 21,650.04 is: 32,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,628.85 : 99,958.94 = 21,650.04 : x
  2. Step 2: Convert to fraction form
    66,628.85/99,958.94 = 21,650.04/x
  3. Step 3: Cross multiply
    66,628.85x = 99,958.94 × 21,650.04
  4. Step 4: Simplify right side
    66,628.85x = 2,164,114,941.11
  5. Step 5: Solve for x
    x = 2,164,114,941.11/66,628.85
  6. Step 6: Final answer
    x = 32,480.15

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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.