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Finding the Third Proportional to 55,279.75 and 87,673.75

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Solution

The third proportional to 55,279.75 and 87,673.75 is: 139,050.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,279.75 : 87,673.75 = 87,673.75 : x
  2. Step 2: Convert to fraction form
    55,279.75/87,673.75 = 87,673.75/x
  3. Step 3: Cross multiply
    55,279.75x = 87,673.75 × 87,673.75
  4. Step 4: Simplify right side
    55,279.75x = 7,686,686,439.06
  5. Step 5: Solve for x
    x = 7,686,686,439.06/55,279.75
  6. Step 6: Final answer
    x = 139,050.67

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.