Finding the Fourth Proportional to 68,503.80, 102,755.70 and 52,951.80
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Solution
The fourth proportional to 68,503.80, 102,755.70 and 52,951.80 is: 79,427.70
Step by Step Solution
- Step 1: Write the proportion equation
68,503.80 : 102,755.70 = 52,951.80 : x - Step 2: Convert to fraction form
68,503.80/102,755.70 = 52,951.80/x - Step 3: Cross multiply
68,503.80x = 102,755.70 × 52,951.80 - Step 4: Simplify right side
68,503.80x = 5,441,099,275.26 - Step 5: Solve for x
x = 5,441,099,275.26/68,503.80 - Step 6: Final answer
x = 79,427.70
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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.