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Finding the Third Proportional to 30,804 and 47,791

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Solution

The third proportional to 30,804 and 47,791 is: 74,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804 : 47,791 = 47,791 : x
  2. Step 2: Convert to fraction form
    30,804/47,791 = 47,791/x
  3. Step 3: Cross multiply
    30,804x = 47,791 × 47,791
  4. Step 4: Simplify right side
    30,804x = 2,283,979,681
  5. Step 5: Solve for x
    x = 2,283,979,681/30,804
  6. Step 6: Final answer
    x = 74,145.56

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.