Finding the Fourth Proportional to 84,015.20, 125,763.60 and 48,850.40
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Solution
The fourth proportional to 84,015.20, 125,763.60 and 48,850.40 is: 73,124.89
Step by Step Solution
- Step 1: Write the proportion equation
84,015.20 : 125,763.60 = 48,850.40 : x - Step 2: Convert to fraction form
84,015.20/125,763.60 = 48,850.40/x - Step 3: Cross multiply
84,015.20x = 125,763.60 × 48,850.40 - Step 4: Simplify right side
84,015.20x = 6,143,602,165.44 - Step 5: Solve for x
x = 6,143,602,165.44/84,015.20 - Step 6: Final answer
x = 73,124.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.