Finding the Fourth Proportional to 129,777.28, 194,664.74 and 41,030.82
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Solution
The fourth proportional to 129,777.28, 194,664.74 and 41,030.82 is: 61,545.86
Step by Step Solution
- Step 1: Write the proportion equation
129,777.28 : 194,664.74 = 41,030.82 : x - Step 2: Convert to fraction form
129,777.28/194,664.74 = 41,030.82/x - Step 3: Cross multiply
129,777.28x = 194,664.74 × 41,030.82 - Step 4: Simplify right side
129,777.28x = 7,987,253,702.13 - Step 5: Solve for x
x = 7,987,253,702.13/129,777.28 - Step 6: Final answer
x = 61,545.86
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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.