Finding the Fourth Proportional to 84,663.12, 126,883.24 and 47,240.80
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Solution
The fourth proportional to 84,663.12, 126,883.24 and 47,240.80 is: 70,799.02
Step by Step Solution
- Step 1: Write the proportion equation
84,663.12 : 126,883.24 = 47,240.80 : x - Step 2: Convert to fraction form
84,663.12/126,883.24 = 47,240.80/x - Step 3: Cross multiply
84,663.12x = 126,883.24 × 47,240.80 - Step 4: Simplify right side
84,663.12x = 5,994,065,764.19 - Step 5: Solve for x
x = 5,994,065,764.19/84,663.12 - Step 6: Final answer
x = 70,799.02
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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.