Finding the Fourth Proportional to 84,614.21, 126,787.82 and 31,232.73
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Solution
The fourth proportional to 84,614.21, 126,787.82 and 31,232.73 is: 46,799.82
Step by Step Solution
- Step 1: Write the proportion equation
84,614.21 : 126,787.82 = 31,232.73 : x - Step 2: Convert to fraction form
84,614.21/126,787.82 = 31,232.73/x - Step 3: Cross multiply
84,614.21x = 126,787.82 × 31,232.73 - Step 4: Simplify right side
84,614.21x = 3,959,929,712.05 - Step 5: Solve for x
x = 3,959,929,712.05/84,614.21 - Step 6: Final answer
x = 46,799.82
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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.