Finding the Fourth Proportional to 74,528.50, 102,850.66 and 40,537.74
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Solution
The fourth proportional to 74,528.50, 102,850.66 and 40,537.74 is: 55,942.80
Step by Step Solution
- Step 1: Write the proportion equation
74,528.50 : 102,850.66 = 40,537.74 : x - Step 2: Convert to fraction form
74,528.50/102,850.66 = 40,537.74/x - Step 3: Cross multiply
74,528.50x = 102,850.66 × 40,537.74 - Step 4: Simplify right side
74,528.50x = 4,169,333,313.91 - Step 5: Solve for x
x = 4,169,333,313.91/74,528.50 - Step 6: Final answer
x = 55,942.80
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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.