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Finding the Fourth Proportional to 49,009.78, 73,515 and 12,073.78

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Solution

The fourth proportional to 49,009.78, 73,515 and 12,073.78 is: 18,110.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,009.78 : 73,515 = 12,073.78 : x
  2. Step 2: Convert to fraction form
    49,009.78/73,515 = 12,073.78/x
  3. Step 3: Cross multiply
    49,009.78x = 73,515 × 12,073.78
  4. Step 4: Simplify right side
    49,009.78x = 887,603,936.70
  5. Step 5: Solve for x
    x = 887,603,936.70/49,009.78
  6. Step 6: Final answer
    x = 18,110.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.