Finding the Fourth Proportional to 90,344.88, 135,536.72 and 27,159.75
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Solution
The fourth proportional to 90,344.88, 135,536.72 and 27,159.75 is: 40,745.46
Step by Step Solution
- Step 1: Write the proportion equation
90,344.88 : 135,536.72 = 27,159.75 : x - Step 2: Convert to fraction form
90,344.88/135,536.72 = 27,159.75/x - Step 3: Cross multiply
90,344.88x = 135,536.72 × 27,159.75 - Step 4: Simplify right side
90,344.88x = 3,681,143,431.02 - Step 5: Solve for x
x = 3,681,143,431.02/90,344.88 - Step 6: Final answer
x = 40,745.46
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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.