Finding the Fourth Proportional to 77,571.62, 107,060.41 and 47,374.31
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Solution
The fourth proportional to 77,571.62, 107,060.41 and 47,374.31 is: 65,383.62
Step by Step Solution
- Step 1: Write the proportion equation
77,571.62 : 107,060.41 = 47,374.31 : x - Step 2: Convert to fraction form
77,571.62/107,060.41 = 47,374.31/x - Step 3: Cross multiply
77,571.62x = 107,060.41 × 47,374.31 - Step 4: Simplify right side
77,571.62x = 5,071,913,052.07 - Step 5: Solve for x
x = 5,071,913,052.07/77,571.62 - Step 6: Final answer
x = 65,383.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.