Finding the Fourth Proportional to 74,504.19, 102,816.32 and 40,512.63
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Solution
The fourth proportional to 74,504.19, 102,816.32 and 40,512.63 is: 55,907.72
Step by Step Solution
- Step 1: Write the proportion equation
74,504.19 : 102,816.32 = 40,512.63 : x - Step 2: Convert to fraction form
74,504.19/102,816.32 = 40,512.63/x - Step 3: Cross multiply
74,504.19x = 102,816.32 × 40,512.63 - Step 4: Simplify right side
74,504.19x = 4,165,359,327.56 - Step 5: Solve for x
x = 4,165,359,327.56/74,504.19 - Step 6: Final answer
x = 55,907.72
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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.