Finding the Fourth Proportional to 84,203.84, 126,221.28 and 28,761.92
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Solution
The fourth proportional to 84,203.84, 126,221.28 and 28,761.92 is: 43,114.02
Step by Step Solution
- Step 1: Write the proportion equation
84,203.84 : 126,221.28 = 28,761.92 : x - Step 2: Convert to fraction form
84,203.84/126,221.28 = 28,761.92/x - Step 3: Cross multiply
84,203.84x = 126,221.28 × 28,761.92 - Step 4: Simplify right side
84,203.84x = 3,630,366,357.66 - Step 5: Solve for x
x = 3,630,366,357.66/84,203.84 - Step 6: Final answer
x = 43,114.02
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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.