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Finding the Third Proportional to 30,102.50 and 47,705

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Solution

The third proportional to 30,102.50 and 47,705 is: 75,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,102.50 : 47,705 = 47,705 : x
  2. Step 2: Convert to fraction form
    30,102.50/47,705 = 47,705/x
  3. Step 3: Cross multiply
    30,102.50x = 47,705 × 47,705
  4. Step 4: Simplify right side
    30,102.50x = 2,275,767,025
  5. Step 5: Solve for x
    x = 2,275,767,025/30,102.50
  6. Step 6: Final answer
    x = 75,600.60

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.