Finding the Fourth Proportional to 75,283.92, 103,794.60 and 48,378.96
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Solution
The fourth proportional to 75,283.92, 103,794.60 and 48,378.96 is: 66,700.50
Step by Step Solution
- Step 1: Write the proportion equation
75,283.92 : 103,794.60 = 48,378.96 : x - Step 2: Convert to fraction form
75,283.92/103,794.60 = 48,378.96/x - Step 3: Cross multiply
75,283.92x = 103,794.60 × 48,378.96 - Step 4: Simplify right side
75,283.92x = 5,021,474,801.62 - Step 5: Solve for x
x = 5,021,474,801.62/75,283.92 - Step 6: Final answer
x = 66,700.50
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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.