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Finding the Fourth Proportional to 100,047.90, 150,072.09 and 40,883.57

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Solution

The fourth proportional to 100,047.90, 150,072.09 and 40,883.57 is: 61,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,047.90 : 150,072.09 = 40,883.57 : x
  2. Step 2: Convert to fraction form
    100,047.90/150,072.09 = 40,883.57/x
  3. Step 3: Cross multiply
    100,047.90x = 150,072.09 × 40,883.57
  4. Step 4: Simplify right side
    100,047.90x = 6,135,482,796.56
  5. Step 5: Solve for x
    x = 6,135,482,796.56/100,047.90
  6. Step 6: Final answer
    x = 61,325.45

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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.