Finding the Fourth Proportional to 84,326.74, 126,477.36 and 31,723.96
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Solution
The fourth proportional to 84,326.74, 126,477.36 and 31,723.96 is: 47,581.14
Step by Step Solution
- Step 1: Write the proportion equation
84,326.74 : 126,477.36 = 31,723.96 : x - Step 2: Convert to fraction form
84,326.74/126,477.36 = 31,723.96/x - Step 3: Cross multiply
84,326.74x = 126,477.36 × 31,723.96 - Step 4: Simplify right side
84,326.74x = 4,012,362,709.55 - Step 5: Solve for x
x = 4,012,362,709.55/84,326.74 - Step 6: Final answer
x = 47,581.14
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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.