Finding the Fourth Proportional to 86,550.44, 129,882.44 and 30,389.09
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Solution
The fourth proportional to 86,550.44, 129,882.44 and 30,389.09 is: 45,603.57
Step by Step Solution
- Step 1: Write the proportion equation
86,550.44 : 129,882.44 = 30,389.09 : x - Step 2: Convert to fraction form
86,550.44/129,882.44 = 30,389.09/x - Step 3: Cross multiply
86,550.44x = 129,882.44 × 30,389.09 - Step 4: Simplify right side
86,550.44x = 3,947,009,144.79 - Step 5: Solve for x
x = 3,947,009,144.79/86,550.44 - Step 6: Final answer
x = 45,603.57
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1.5x scale
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.