Finding the Fourth Proportional to 74,743.70, 103,591.54 and 73,344.02
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Solution
The fourth proportional to 74,743.70, 103,591.54 and 73,344.02 is: 101,651.65
Step by Step Solution
- Step 1: Write the proportion equation
74,743.70 : 103,591.54 = 73,344.02 : x - Step 2: Convert to fraction form
74,743.70/103,591.54 = 73,344.02/x - Step 3: Cross multiply
74,743.70x = 103,591.54 × 73,344.02 - Step 4: Simplify right side
74,743.70x = 7,597,819,555.31 - Step 5: Solve for x
x = 7,597,819,555.31/74,743.70 - Step 6: Final answer
x = 101,651.65
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.