Finding the Fourth Proportional to 87,530.68, 131,331.66 and 40,754.80
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Solution
The fourth proportional to 87,530.68, 131,331.66 and 40,754.80 is: 61,148.79
Step by Step Solution
- Step 1: Write the proportion equation
87,530.68 : 131,331.66 = 40,754.80 : x - Step 2: Convert to fraction form
87,530.68/131,331.66 = 40,754.80/x - Step 3: Cross multiply
87,530.68x = 131,331.66 × 40,754.80 - Step 4: Simplify right side
87,530.68x = 5,352,395,536.97 - Step 5: Solve for x
x = 5,352,395,536.97/87,530.68 - Step 6: Final answer
x = 61,148.79
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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.