Finding the Fourth Proportional to 68,348.84, 102,528.61 and 18,428.17
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Solution
The fourth proportional to 68,348.84, 102,528.61 and 18,428.17 is: 27,643.70
Step by Step Solution
- Step 1: Write the proportion equation
68,348.84 : 102,528.61 = 18,428.17 : x - Step 2: Convert to fraction form
68,348.84/102,528.61 = 18,428.17/x - Step 3: Cross multiply
68,348.84x = 102,528.61 × 18,428.17 - Step 4: Simplify right side
68,348.84x = 1,889,414,654.94 - Step 5: Solve for x
x = 1,889,414,654.94/68,348.84 - Step 6: Final answer
x = 27,643.70
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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.