Finding the Fourth Proportional to 68,678.12, 102,995.33 and 64,195.26
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Solution
The fourth proportional to 68,678.12, 102,995.33 and 64,195.26 is: 96,272.47
Step by Step Solution
- Step 1: Write the proportion equation
68,678.12 : 102,995.33 = 64,195.26 : x - Step 2: Convert to fraction form
68,678.12/102,995.33 = 64,195.26/x - Step 3: Cross multiply
68,678.12x = 102,995.33 × 64,195.26 - Step 4: Simplify right side
68,678.12x = 6,611,811,988.14 - Step 5: Solve for x
x = 6,611,811,988.14/68,678.12 - Step 6: Final answer
x = 96,272.47
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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.