Finding the Fourth Proportional to 74,729.96, 103,069.02 and 47,874.97
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Solution
The fourth proportional to 74,729.96, 103,069.02 and 47,874.97 is: 66,030.09
Step by Step Solution
- Step 1: Write the proportion equation
74,729.96 : 103,069.02 = 47,874.97 : x - Step 2: Convert to fraction form
74,729.96/103,069.02 = 47,874.97/x - Step 3: Cross multiply
74,729.96x = 103,069.02 × 47,874.97 - Step 4: Simplify right side
74,729.96x = 4,934,425,969.03 - Step 5: Solve for x
x = 4,934,425,969.03/74,729.96 - Step 6: Final answer
x = 66,030.09
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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.