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Finding the Third Proportional to 56,255 and 79,130

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Solution

The third proportional to 56,255 and 79,130 is: 111,306.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,255 : 79,130 = 79,130 : x
  2. Step 2: Convert to fraction form
    56,255/79,130 = 79,130/x
  3. Step 3: Cross multiply
    56,255x = 79,130 × 79,130
  4. Step 4: Simplify right side
    56,255x = 6,261,556,900
  5. Step 5: Solve for x
    x = 6,261,556,900/56,255
  6. Step 6: Final answer
    x = 111,306.67

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.