Finding the Fourth Proportional to 86,905.44, 130,359.20 and 27,740.80
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Solution
The fourth proportional to 86,905.44, 130,359.20 and 27,740.80 is: 41,611.53
Step by Step Solution
- Step 1: Write the proportion equation
86,905.44 : 130,359.20 = 27,740.80 : x - Step 2: Convert to fraction form
86,905.44/130,359.20 = 27,740.80/x - Step 3: Cross multiply
86,905.44x = 130,359.20 × 27,740.80 - Step 4: Simplify right side
86,905.44x = 3,616,268,495.36 - Step 5: Solve for x
x = 3,616,268,495.36/86,905.44 - Step 6: Final answer
x = 41,611.53
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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.