Finding the Fourth Proportional to 98,511.87, 135,838.26 and 66,625.41
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Solution
The fourth proportional to 98,511.87, 135,838.26 and 66,625.41 is: 91,869.94
Step by Step Solution
- Step 1: Write the proportion equation
98,511.87 : 135,838.26 = 66,625.41 : x - Step 2: Convert to fraction form
98,511.87/135,838.26 = 66,625.41/x - Step 3: Cross multiply
98,511.87x = 135,838.26 × 66,625.41 - Step 4: Simplify right side
98,511.87x = 9,050,279,766.19 - Step 5: Solve for x
x = 9,050,279,766.19/98,511.87 - Step 6: Final answer
x = 91,869.94
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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.