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Finding the Third Proportional to 47,379.94 and 78,954.75

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Solution

The third proportional to 47,379.94 and 78,954.75 is: 131,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,379.94 : 78,954.75 = 78,954.75 : x
  2. Step 2: Convert to fraction form
    47,379.94/78,954.75 = 78,954.75/x
  3. Step 3: Cross multiply
    47,379.94x = 78,954.75 × 78,954.75
  4. Step 4: Simplify right side
    47,379.94x = 6,233,852,547.56
  5. Step 5: Solve for x
    x = 6,233,852,547.56/47,379.94
  6. Step 6: Final answer
    x = 131,571.57

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.