Finding the Fourth Proportional to 87,349.36, 131,030.88 and 31,201.60
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Solution
The fourth proportional to 87,349.36, 131,030.88 and 31,201.60 is: 46,804.84
Step by Step Solution
- Step 1: Write the proportion equation
87,349.36 : 131,030.88 = 31,201.60 : x - Step 2: Convert to fraction form
87,349.36/131,030.88 = 31,201.60/x - Step 3: Cross multiply
87,349.36x = 131,030.88 × 31,201.60 - Step 4: Simplify right side
87,349.36x = 4,088,373,105.41 - Step 5: Solve for x
x = 4,088,373,105.41/87,349.36 - Step 6: Final answer
x = 46,804.84
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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.