Finding the Fourth Proportional to 84,328.32, 126,511.68 and 28,920.96
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Solution
The fourth proportional to 84,328.32, 126,511.68 and 28,920.96 is: 43,388.02
Step by Step Solution
- Step 1: Write the proportion equation
84,328.32 : 126,511.68 = 28,920.96 : x - Step 2: Convert to fraction form
84,328.32/126,511.68 = 28,920.96/x - Step 3: Cross multiply
84,328.32x = 126,511.68 × 28,920.96 - Step 4: Simplify right side
84,328.32x = 3,658,839,236.81 - Step 5: Solve for x
x = 3,658,839,236.81/84,328.32 - Step 6: Final answer
x = 43,388.02
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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.