Finding the Fourth Proportional to 93,145.25, 128,540.45 and 50,704.09
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Solution
The fourth proportional to 93,145.25, 128,540.45 and 50,704.09 is: 69,971.65
Step by Step Solution
- Step 1: Write the proportion equation
93,145.25 : 128,540.45 = 50,704.09 : x - Step 2: Convert to fraction form
93,145.25/128,540.45 = 50,704.09/x - Step 3: Cross multiply
93,145.25x = 128,540.45 × 50,704.09 - Step 4: Simplify right side
93,145.25x = 6,517,526,545.44 - Step 5: Solve for x
x = 6,517,526,545.44/93,145.25 - Step 6: Final answer
x = 69,971.65
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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.