Finding the Fourth Proportional to 74,409.26, 102,663.92 and 70,669.49
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Solution
The fourth proportional to 74,409.26, 102,663.92 and 70,669.49 is: 97,504.09
Step by Step Solution
- Step 1: Write the proportion equation
74,409.26 : 102,663.92 = 70,669.49 : x - Step 2: Convert to fraction form
74,409.26/102,663.92 = 70,669.49/x - Step 3: Cross multiply
74,409.26x = 102,663.92 × 70,669.49 - Step 4: Simplify right side
74,409.26x = 7,255,206,531.15 - Step 5: Solve for x
x = 7,255,206,531.15/74,409.26 - Step 6: Final answer
x = 97,504.09
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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.