Finding the Fourth Proportional to 68,383.30, 102,585.75 and 28,940.62
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Solution
The fourth proportional to 68,383.30, 102,585.75 and 28,940.62 is: 43,415.50
Step by Step Solution
- Step 1: Write the proportion equation
68,383.30 : 102,585.75 = 28,940.62 : x - Step 2: Convert to fraction form
68,383.30/102,585.75 = 28,940.62/x - Step 3: Cross multiply
68,383.30x = 102,585.75 × 28,940.62 - Step 4: Simplify right side
68,383.30x = 2,968,895,208.17 - Step 5: Solve for x
x = 2,968,895,208.17/68,383.30 - Step 6: Final answer
x = 43,415.50
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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.