Finding the Fourth Proportional to 87,782.26, 131,673.39 and 48,319.06
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Solution
The fourth proportional to 87,782.26, 131,673.39 and 48,319.06 is: 72,478.59
Step by Step Solution
- Step 1: Write the proportion equation
87,782.26 : 131,673.39 = 48,319.06 : x - Step 2: Convert to fraction form
87,782.26/131,673.39 = 48,319.06/x - Step 3: Cross multiply
87,782.26x = 131,673.39 × 48,319.06 - Step 4: Simplify right side
87,782.26x = 6,362,334,431.81 - Step 5: Solve for x
x = 6,362,334,431.81/87,782.26 - Step 6: Final answer
x = 72,478.59
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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.