Finding the Fourth Proportional to 99,376.82, 149,122.64 and 52,629.70
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Solution
The fourth proportional to 99,376.82, 149,122.64 and 52,629.70 is: 78,974.95
Step by Step Solution
- Step 1: Write the proportion equation
99,376.82 : 149,122.64 = 52,629.70 : x - Step 2: Convert to fraction form
99,376.82/149,122.64 = 52,629.70/x - Step 3: Cross multiply
99,376.82x = 149,122.64 × 52,629.70 - Step 4: Simplify right side
99,376.82x = 7,848,279,806.41 - Step 5: Solve for x
x = 7,848,279,806.41/99,376.82 - Step 6: Final answer
x = 78,974.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.