Finding the Fourth Proportional to 74,558.85, 102,857.75 and 50,351.95
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Solution
The fourth proportional to 74,558.85, 102,857.75 and 50,351.95 is: 69,463.09
Step by Step Solution
- Step 1: Write the proportion equation
74,558.85 : 102,857.75 = 50,351.95 : x - Step 2: Convert to fraction form
74,558.85/102,857.75 = 50,351.95/x - Step 3: Cross multiply
74,558.85x = 102,857.75 × 50,351.95 - Step 4: Simplify right side
74,558.85x = 5,179,088,640.03 - Step 5: Solve for x
x = 5,179,088,640.03/74,558.85 - Step 6: Final answer
x = 69,463.09
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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.