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Finding the Third Proportional to 53,912 and 83,100

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Solution

The third proportional to 53,912 and 83,100 is: 128,090.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,912 : 83,100 = 83,100 : x
  2. Step 2: Convert to fraction form
    53,912/83,100 = 83,100/x
  3. Step 3: Cross multiply
    53,912x = 83,100 × 83,100
  4. Step 4: Simplify right side
    53,912x = 6,905,610,000
  5. Step 5: Solve for x
    x = 6,905,610,000/53,912
  6. Step 6: Final answer
    x = 128,090.41

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.