Finding the Fourth Proportional to 91,903.36, 126,817.68 and 51,607.96
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Solution
The fourth proportional to 91,903.36, 126,817.68 and 51,607.96 is: 71,213.96
Step by Step Solution
- Step 1: Write the proportion equation
91,903.36 : 126,817.68 = 51,607.96 : x - Step 2: Convert to fraction form
91,903.36/126,817.68 = 51,607.96/x - Step 3: Cross multiply
91,903.36x = 126,817.68 × 51,607.96 - Step 4: Simplify right side
91,903.36x = 6,544,801,756.73 - Step 5: Solve for x
x = 6,544,801,756.73/91,903.36 - Step 6: Final answer
x = 71,213.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.