Finding the Fourth Proportional to 90,235.10, 135,326.37 and 27,052.70
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Solution
The fourth proportional to 90,235.10, 135,326.37 and 27,052.70 is: 40,571.17
Step by Step Solution
- Step 1: Write the proportion equation
90,235.10 : 135,326.37 = 27,052.70 : x - Step 2: Convert to fraction form
90,235.10/135,326.37 = 27,052.70/x - Step 3: Cross multiply
90,235.10x = 135,326.37 × 27,052.70 - Step 4: Simplify right side
90,235.10x = 3,660,943,689.70 - Step 5: Solve for x
x = 3,660,943,689.70/90,235.10 - Step 6: Final answer
x = 40,571.17
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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.