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Finding the Third Proportional to 39,030 and 84,630

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Solution

The third proportional to 39,030 and 84,630 is: 183,505.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,030 : 84,630 = 84,630 : x
  2. Step 2: Convert to fraction form
    39,030/84,630 = 84,630/x
  3. Step 3: Cross multiply
    39,030x = 84,630 × 84,630
  4. Step 4: Simplify right side
    39,030x = 7,162,236,900
  5. Step 5: Solve for x
    x = 7,162,236,900/39,030
  6. Step 6: Final answer
    x = 183,505.94

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.