Finding the Fourth Proportional to 86,571.46, 129,915.51 and 33,974.74
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Solution
The fourth proportional to 86,571.46, 129,915.51 and 33,974.74 is: 50,985.00
Step by Step Solution
- Step 1: Write the proportion equation
86,571.46 : 129,915.51 = 33,974.74 : x - Step 2: Convert to fraction form
86,571.46/129,915.51 = 33,974.74/x - Step 3: Cross multiply
86,571.46x = 129,915.51 × 33,974.74 - Step 4: Simplify right side
86,571.46x = 4,413,845,674.22 - Step 5: Solve for x
x = 4,413,845,674.22/86,571.46 - Step 6: Final answer
x = 50,985.00
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1.5x scale
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.