Finding the Fourth Proportional to 90,579.26, 135,825.18 and 37,974.62
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Solution
The fourth proportional to 90,579.26, 135,825.18 and 37,974.62 is: 56,943.60
Step by Step Solution
- Step 1: Write the proportion equation
90,579.26 : 135,825.18 = 37,974.62 : x - Step 2: Convert to fraction form
90,579.26/135,825.18 = 37,974.62/x - Step 3: Cross multiply
90,579.26x = 135,825.18 × 37,974.62 - Step 4: Simplify right side
90,579.26x = 5,157,909,596.93 - Step 5: Solve for x
x = 5,157,909,596.93/90,579.26 - Step 6: Final answer
x = 56,943.60
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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.