Finding the Fourth Proportional to 84,638.54, 126,957.99 and 21,458.64
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Solution
The fourth proportional to 84,638.54, 126,957.99 and 21,458.64 is: 32,188.00
Step by Step Solution
- Step 1: Write the proportion equation
84,638.54 : 126,957.99 = 21,458.64 : x - Step 2: Convert to fraction form
84,638.54/126,957.99 = 21,458.64/x - Step 3: Cross multiply
84,638.54x = 126,957.99 × 21,458.64 - Step 4: Simplify right side
84,638.54x = 2,724,345,695.24 - Step 5: Solve for x
x = 2,724,345,695.24/84,638.54 - Step 6: Final answer
x = 32,188.00
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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.