Finding the Fourth Proportional to 86,351.02, 129,339.05 and 41,884.31
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Solution
The fourth proportional to 86,351.02, 129,339.05 and 41,884.31 is: 62,735.53
Step by Step Solution
- Step 1: Write the proportion equation
86,351.02 : 129,339.05 = 41,884.31 : x - Step 2: Convert to fraction form
86,351.02/129,339.05 = 41,884.31/x - Step 3: Cross multiply
86,351.02x = 129,339.05 × 41,884.31 - Step 4: Simplify right side
86,351.02x = 5,417,276,979.23 - Step 5: Solve for x
x = 5,417,276,979.23/86,351.02 - Step 6: Final answer
x = 62,735.53
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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.