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Finding the Third Proportional to 30,750.75 and 67,252.50

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Solution

The third proportional to 30,750.75 and 67,252.50 is: 147,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,750.75 : 67,252.50 = 67,252.50 : x
  2. Step 2: Convert to fraction form
    30,750.75/67,252.50 = 67,252.50/x
  3. Step 3: Cross multiply
    30,750.75x = 67,252.50 × 67,252.50
  4. Step 4: Simplify right side
    30,750.75x = 4,522,898,756.25
  5. Step 5: Solve for x
    x = 4,522,898,756.25/30,750.75
  6. Step 6: Final answer
    x = 147,082.55

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.