Finding the Fourth Proportional to 90,493.44, 135,741.12 and 49,202.88
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Solution
The fourth proportional to 90,493.44, 135,741.12 and 49,202.88 is: 73,804.84
Step by Step Solution
- Step 1: Write the proportion equation
90,493.44 : 135,741.12 = 49,202.88 : x - Step 2: Convert to fraction form
90,493.44/135,741.12 = 49,202.88/x - Step 3: Cross multiply
90,493.44x = 135,741.12 × 49,202.88 - Step 4: Simplify right side
90,493.44x = 6,678,854,038.43 - Step 5: Solve for x
x = 6,678,854,038.43/90,493.44 - Step 6: Final answer
x = 73,804.84
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1.5x scale
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.