Finding the Fourth Proportional to 91,677.44, 126,379.68 and 71,511.68
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Solution
The fourth proportional to 91,677.44, 126,379.68 and 71,511.68 is: 98,580.67
Step by Step Solution
- Step 1: Write the proportion equation
91,677.44 : 126,379.68 = 71,511.68 : x - Step 2: Convert to fraction form
91,677.44/126,379.68 = 71,511.68/x - Step 3: Cross multiply
91,677.44x = 126,379.68 × 71,511.68 - Step 4: Simplify right side
91,677.44x = 9,037,623,234.66 - Step 5: Solve for x
x = 9,037,623,234.66/91,677.44 - Step 6: Final answer
x = 98,580.67
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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.