Finding the Fourth Proportional to 84,044.19, 115,979.27 and 46,318.44
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Solution
The fourth proportional to 84,044.19, 115,979.27 and 46,318.44 is: 63,918.50
Step by Step Solution
- Step 1: Write the proportion equation
84,044.19 : 115,979.27 = 46,318.44 : x - Step 2: Convert to fraction form
84,044.19/115,979.27 = 46,318.44/x - Step 3: Cross multiply
84,044.19x = 115,979.27 × 46,318.44 - Step 4: Simplify right side
84,044.19x = 5,371,978,858.74 - Step 5: Solve for x
x = 5,371,978,858.74/84,044.19 - Step 6: Final answer
x = 63,918.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.