Finding the Fourth Proportional to 68,841.36, 103,257.81 and 40,938.98
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Solution
The fourth proportional to 68,841.36, 103,257.81 and 40,938.98 is: 61,405.95
Step by Step Solution
- Step 1: Write the proportion equation
68,841.36 : 103,257.81 = 40,938.98 : x - Step 2: Convert to fraction form
68,841.36/103,257.81 = 40,938.98/x - Step 3: Cross multiply
68,841.36x = 103,257.81 × 40,938.98 - Step 4: Simplify right side
68,841.36x = 4,227,268,902.14 - Step 5: Solve for x
x = 4,227,268,902.14/68,841.36 - Step 6: Final answer
x = 61,405.95
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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.