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Finding the Third Proportional to 45,778.50 and 69,315

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Solution

The third proportional to 45,778.50 and 69,315 is: 104,952.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,778.50 : 69,315 = 69,315 : x
  2. Step 2: Convert to fraction form
    45,778.50/69,315 = 69,315/x
  3. Step 3: Cross multiply
    45,778.50x = 69,315 × 69,315
  4. Step 4: Simplify right side
    45,778.50x = 4,804,569,225
  5. Step 5: Solve for x
    x = 4,804,569,225/45,778.50
  6. Step 6: Final answer
    x = 104,952.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.