Finding the Fourth Proportional to 87,434.44, 120,655.26 and 49,707.88
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Solution
The fourth proportional to 87,434.44, 120,655.26 and 49,707.88 is: 68,594.45
Step by Step Solution
- Step 1: Write the proportion equation
87,434.44 : 120,655.26 = 49,707.88 : x - Step 2: Convert to fraction form
87,434.44/120,655.26 = 49,707.88/x - Step 3: Cross multiply
87,434.44x = 120,655.26 × 49,707.88 - Step 4: Simplify right side
87,434.44x = 5,997,517,185.45 - Step 5: Solve for x
x = 5,997,517,185.45/87,434.44 - Step 6: Final answer
x = 68,594.45
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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.