Finding the Fourth Proportional to 103,611.63, 155,442.95 and 33,490.94
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Solution
The fourth proportional to 103,611.63, 155,442.95 and 33,490.94 is: 50,244.65
Step by Step Solution
- Step 1: Write the proportion equation
103,611.63 : 155,442.95 = 33,490.94 : x - Step 2: Convert to fraction form
103,611.63/155,442.95 = 33,490.94/x - Step 3: Cross multiply
103,611.63x = 155,442.95 × 33,490.94 - Step 4: Simplify right side
103,611.63x = 5,205,930,511.87 - Step 5: Solve for x
x = 5,205,930,511.87/103,611.63 - Step 6: Final answer
x = 50,244.65
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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.