Finding the Fourth Proportional to 80,743.18, 121,133.94 and 27,438.70
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Solution
The fourth proportional to 80,743.18, 121,133.94 and 27,438.70 is: 41,164.56
Step by Step Solution
- Step 1: Write the proportion equation
80,743.18 : 121,133.94 = 27,438.70 : x - Step 2: Convert to fraction form
80,743.18/121,133.94 = 27,438.70/x - Step 3: Cross multiply
80,743.18x = 121,133.94 × 27,438.70 - Step 4: Simplify right side
80,743.18x = 3,323,757,839.48 - Step 5: Solve for x
x = 3,323,757,839.48/80,743.18 - Step 6: Final answer
x = 41,164.56
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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.