Finding the Fourth Proportional to 91,960.96, 126,794.80 and 71,548.96
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Solution
The fourth proportional to 91,960.96, 126,794.80 and 71,548.96 is: 98,650.95
Step by Step Solution
- Step 1: Write the proportion equation
91,960.96 : 126,794.80 = 71,548.96 : x - Step 2: Convert to fraction form
91,960.96/126,794.80 = 71,548.96/x - Step 3: Cross multiply
91,960.96x = 126,794.80 × 71,548.96 - Step 4: Simplify right side
91,960.96x = 9,072,036,073.41 - Step 5: Solve for x
x = 9,072,036,073.41/91,960.96 - Step 6: Final answer
x = 98,650.95
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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.