Finding the Fourth Proportional to 74,556.06, 102,889.26 and 40,566.39
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Solution
The fourth proportional to 74,556.06, 102,889.26 and 40,566.39 is: 55,982.65
Step by Step Solution
- Step 1: Write the proportion equation
74,556.06 : 102,889.26 = 40,566.39 : x - Step 2: Convert to fraction form
74,556.06/102,889.26 = 40,566.39/x - Step 3: Cross multiply
74,556.06x = 102,889.26 × 40,566.39 - Step 4: Simplify right side
74,556.06x = 4,173,845,847.97 - Step 5: Solve for x
x = 4,173,845,847.97/74,556.06 - Step 6: Final answer
x = 55,982.65
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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.