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Finding the Third Proportional to 57,888 and 78,176

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Solution

The third proportional to 57,888 and 78,176 is: 105,574.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,888 : 78,176 = 78,176 : x
  2. Step 2: Convert to fraction form
    57,888/78,176 = 78,176/x
  3. Step 3: Cross multiply
    57,888x = 78,176 × 78,176
  4. Step 4: Simplify right side
    57,888x = 6,111,486,976
  5. Step 5: Solve for x
    x = 6,111,486,976/57,888
  6. Step 6: Final answer
    x = 105,574.33

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.