Finding the Fourth Proportional to 89,571.48, 134,409.14 and 45,201.70
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Solution
The fourth proportional to 89,571.48, 134,409.14 and 45,201.70 is: 67,828.75
Step by Step Solution
- Step 1: Write the proportion equation
89,571.48 : 134,409.14 = 45,201.70 : x - Step 2: Convert to fraction form
89,571.48/134,409.14 = 45,201.70/x - Step 3: Cross multiply
89,571.48x = 134,409.14 × 45,201.70 - Step 4: Simplify right side
89,571.48x = 6,075,521,623.54 - Step 5: Solve for x
x = 6,075,521,623.54/89,571.48 - Step 6: Final answer
x = 67,828.75
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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.