Finding the Fourth Proportional to 86,912.16, 130,277.04 and 40,195.68
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Solution
The fourth proportional to 86,912.16, 130,277.04 and 40,195.68 is: 60,251.34
Step by Step Solution
- Step 1: Write the proportion equation
86,912.16 : 130,277.04 = 40,195.68 : x - Step 2: Convert to fraction form
86,912.16/130,277.04 = 40,195.68/x - Step 3: Cross multiply
86,912.16x = 130,277.04 × 40,195.68 - Step 4: Simplify right side
86,912.16x = 5,236,574,211.19 - Step 5: Solve for x
x = 5,236,574,211.19/86,912.16 - Step 6: Final answer
x = 60,251.34
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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.