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Finding the Third Proportional to 28,191.80 and 66,737.67

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Solution

The third proportional to 28,191.80 and 66,737.67 is: 157,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.80 : 66,737.67 = 66,737.67 : x
  2. Step 2: Convert to fraction form
    28,191.80/66,737.67 = 66,737.67/x
  3. Step 3: Cross multiply
    28,191.80x = 66,737.67 × 66,737.67
  4. Step 4: Simplify right side
    28,191.80x = 4,453,916,847.30
  5. Step 5: Solve for x
    x = 4,453,916,847.30/28,191.80
  6. Step 6: Final answer
    x = 157,986.27

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.