Finding the Fourth Proportional to 68,408.82, 102,619.08 and 18,488.70
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Solution
The fourth proportional to 68,408.82, 102,619.08 and 18,488.70 is: 27,734.63
Step by Step Solution
- Step 1: Write the proportion equation
68,408.82 : 102,619.08 = 18,488.70 : x - Step 2: Convert to fraction form
68,408.82/102,619.08 = 18,488.70/x - Step 3: Cross multiply
68,408.82x = 102,619.08 × 18,488.70 - Step 4: Simplify right side
68,408.82x = 1,897,293,384.40 - Step 5: Solve for x
x = 1,897,293,384.40/68,408.82 - Step 6: Final answer
x = 27,734.63
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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.