Finding the Fourth Proportional to 68,045.05, 102,083.97 and 66,915.31
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Solution
The fourth proportional to 68,045.05, 102,083.97 and 66,915.31 is: 100,389.09
Step by Step Solution
- Step 1: Write the proportion equation
68,045.05 : 102,083.97 = 66,915.31 : x - Step 2: Convert to fraction form
68,045.05/102,083.97 = 66,915.31/x - Step 3: Cross multiply
68,045.05x = 102,083.97 × 66,915.31 - Step 4: Simplify right side
68,045.05x = 6,830,980,498.58 - Step 5: Solve for x
x = 6,830,980,498.58/68,045.05 - Step 6: Final answer
x = 100,389.09
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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.