Finding the Fourth Proportional to 74,400.97, 102,674.57 and 40,409.49
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Solution
The fourth proportional to 74,400.97, 102,674.57 and 40,409.49 is: 55,765.76
Step by Step Solution
- Step 1: Write the proportion equation
74,400.97 : 102,674.57 = 40,409.49 : x - Step 2: Convert to fraction form
74,400.97/102,674.57 = 40,409.49/x - Step 3: Cross multiply
74,400.97x = 102,674.57 × 40,409.49 - Step 4: Simplify right side
74,400.97x = 4,149,026,496.30 - Step 5: Solve for x
x = 4,149,026,496.30/74,400.97 - Step 6: Final answer
x = 55,765.76
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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.