Finding the Fourth Proportional to 78,787.73, 118,202.66 and 34,418.09
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Solution
The fourth proportional to 78,787.73, 118,202.66 and 34,418.09 is: 51,636.33
Step by Step Solution
- Step 1: Write the proportion equation
78,787.73 : 118,202.66 = 34,418.09 : x - Step 2: Convert to fraction form
78,787.73/118,202.66 = 34,418.09/x - Step 3: Cross multiply
78,787.73x = 118,202.66 × 34,418.09 - Step 4: Simplify right side
78,787.73x = 4,068,309,618.03 - Step 5: Solve for x
x = 4,068,309,618.03/78,787.73 - Step 6: Final answer
x = 51,636.33
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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.