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Finding the Third Proportional to 55,821 and 79,579.50

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Solution

The third proportional to 55,821 and 79,579.50 is: 113,450.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,821 : 79,579.50 = 79,579.50 : x
  2. Step 2: Convert to fraction form
    55,821/79,579.50 = 79,579.50/x
  3. Step 3: Cross multiply
    55,821x = 79,579.50 × 79,579.50
  4. Step 4: Simplify right side
    55,821x = 6,332,896,820.25
  5. Step 5: Solve for x
    x = 6,332,896,820.25/55,821
  6. Step 6: Final answer
    x = 113,450.08

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.