Finding the Fourth Proportional to 68,312.14, 102,456.62 and 18,381.11
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Solution
The fourth proportional to 68,312.14, 102,456.62 and 18,381.11 is: 27,568.54
Step by Step Solution
- Step 1: Write the proportion equation
68,312.14 : 102,456.62 = 18,381.11 : x - Step 2: Convert to fraction form
68,312.14/102,456.62 = 18,381.11/x - Step 3: Cross multiply
68,312.14x = 102,456.62 × 18,381.11 - Step 4: Simplify right side
68,312.14x = 1,883,266,279.08 - Step 5: Solve for x
x = 1,883,266,279.08/68,312.14 - Step 6: Final answer
x = 27,568.54
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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.