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Finding the Third Proportional to 31,320 and 48,075.75

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Solution

The third proportional to 31,320 and 48,075.75 is: 73,795.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320 : 48,075.75 = 48,075.75 : x
  2. Step 2: Convert to fraction form
    31,320/48,075.75 = 48,075.75/x
  3. Step 3: Cross multiply
    31,320x = 48,075.75 × 48,075.75
  4. Step 4: Simplify right side
    31,320x = 2,311,277,738.06
  5. Step 5: Solve for x
    x = 2,311,277,738.06/31,320
  6. Step 6: Final answer
    x = 73,795.59

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.