Finding the Fourth Proportional to 91,261.20, 125,939.11 and 50,975.53
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Solution
The fourth proportional to 91,261.20, 125,939.11 and 50,975.53 is: 70,345.48
Step by Step Solution
- Step 1: Write the proportion equation
91,261.20 : 125,939.11 = 50,975.53 : x - Step 2: Convert to fraction form
91,261.20/125,939.11 = 50,975.53/x - Step 3: Cross multiply
91,261.20x = 125,939.11 × 50,975.53 - Step 4: Simplify right side
91,261.20x = 6,419,812,879.98 - Step 5: Solve for x
x = 6,419,812,879.98/91,261.20 - Step 6: Final answer
x = 70,345.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.