Home / 66,141.63-99,224.60-21,771.05

Finding the Fourth Proportional to 66,141.63, 99,224.60 and 21,771.05

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Solution

The fourth proportional to 66,141.63, 99,224.60 and 21,771.05 is: 32,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,141.63 : 99,224.60 = 21,771.05 : x
  2. Step 2: Convert to fraction form
    66,141.63/99,224.60 = 21,771.05/x
  3. Step 3: Cross multiply
    66,141.63x = 99,224.60 × 21,771.05
  4. Step 4: Simplify right side
    66,141.63x = 2,160,223,122.85
  5. Step 5: Solve for x
    x = 2,160,223,122.85/66,141.63
  6. Step 6: Final answer
    x = 32,660.57

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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.