Finding the Fourth Proportional to 91,243.62, 125,914.95 and 50,958.09
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Solution
The fourth proportional to 91,243.62, 125,914.95 and 50,958.09 is: 70,321.47
Step by Step Solution
- Step 1: Write the proportion equation
91,243.62 : 125,914.95 = 50,958.09 : x - Step 2: Convert to fraction form
91,243.62/125,914.95 = 50,958.09/x - Step 3: Cross multiply
91,243.62x = 125,914.95 × 50,958.09 - Step 4: Simplify right side
91,243.62x = 6,416,385,354.45 - Step 5: Solve for x
x = 6,416,385,354.45/91,243.62 - Step 6: Final answer
x = 70,321.47
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1.5x scale
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.