Finding the Fourth Proportional to 90,236.68, 135,355.02 and 27,905.80
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Solution
The fourth proportional to 90,236.68, 135,355.02 and 27,905.80 is: 41,858.70
Step by Step Solution
- Step 1: Write the proportion equation
90,236.68 : 135,355.02 = 27,905.80 : x - Step 2: Convert to fraction form
90,236.68/135,355.02 = 27,905.80/x - Step 3: Cross multiply
90,236.68x = 135,355.02 × 27,905.80 - Step 4: Simplify right side
90,236.68x = 3,777,190,117.12 - Step 5: Solve for x
x = 3,777,190,117.12/90,236.68 - Step 6: Final answer
x = 41,858.70
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1.5x scale
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.