Finding the Fourth Proportional to 84,040.75, 115,976.24 and 50,506.75
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Solution
The fourth proportional to 84,040.75, 115,976.24 and 50,506.75 is: 69,699.32
Step by Step Solution
- Step 1: Write the proportion equation
84,040.75 : 115,976.24 = 50,506.75 : x - Step 2: Convert to fraction form
84,040.75/115,976.24 = 50,506.75/x - Step 3: Cross multiply
84,040.75x = 115,976.24 × 50,506.75 - Step 4: Simplify right side
84,040.75x = 5,857,582,959.62 - Step 5: Solve for x
x = 5,857,582,959.62/84,040.75 - Step 6: Final answer
x = 69,699.32
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1.5x scale
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.