Finding the Fourth Proportional to 85,559.59, 128,361.26 and 35,623.09
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Solution
The fourth proportional to 85,559.59, 128,361.26 and 35,623.09 is: 53,443.74
Step by Step Solution
- Step 1: Write the proportion equation
85,559.59 : 128,361.26 = 35,623.09 : x - Step 2: Convert to fraction form
85,559.59/128,361.26 = 35,623.09/x - Step 3: Cross multiply
85,559.59x = 128,361.26 × 35,623.09 - Step 4: Simplify right side
85,559.59x = 4,572,624,717.49 - Step 5: Solve for x
x = 4,572,624,717.49/85,559.59 - Step 6: Final answer
x = 53,443.74
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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.