Finding the Fourth Proportional to 90,517.14, 135,735.62 and 48,387.02
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Solution
The fourth proportional to 90,517.14, 135,735.62 and 48,387.02 is: 72,559.09
Step by Step Solution
- Step 1: Write the proportion equation
90,517.14 : 135,735.62 = 48,387.02 : x - Step 2: Convert to fraction form
90,517.14/135,735.62 = 48,387.02/x - Step 3: Cross multiply
90,517.14x = 135,735.62 × 48,387.02 - Step 4: Simplify right side
90,517.14x = 6,567,841,239.04 - Step 5: Solve for x
x = 6,567,841,239.04/90,517.14 - Step 6: Final answer
x = 72,559.09
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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.