Finding the Fourth Proportional to 90,664.44, 136,022.18 and 31,506.09
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Solution
The fourth proportional to 90,664.44, 136,022.18 and 31,506.09 is: 47,268.00
Step by Step Solution
- Step 1: Write the proportion equation
90,664.44 : 136,022.18 = 31,506.09 : x - Step 2: Convert to fraction form
90,664.44/136,022.18 = 31,506.09/x - Step 3: Cross multiply
90,664.44x = 136,022.18 × 31,506.09 - Step 4: Simplify right side
90,664.44x = 4,285,526,887.55 - Step 5: Solve for x
x = 4,285,526,887.55/90,664.44 - Step 6: Final answer
x = 47,268.00
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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.