Finding the Fourth Proportional to 80,796.97, 121,140.78 and 28,177.75
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Solution
The fourth proportional to 80,796.97, 121,140.78 and 28,177.75 is: 42,247.56
Step by Step Solution
- Step 1: Write the proportion equation
80,796.97 : 121,140.78 = 28,177.75 : x - Step 2: Convert to fraction form
80,796.97/121,140.78 = 28,177.75/x - Step 3: Cross multiply
80,796.97x = 121,140.78 × 28,177.75 - Step 4: Simplify right side
80,796.97x = 3,413,474,613.65 - Step 5: Solve for x
x = 3,413,474,613.65/80,796.97 - Step 6: Final answer
x = 42,247.56
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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.