Finding the Fourth Proportional to 87,121.04, 120,232.28 and 51,334.92
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Solution
The fourth proportional to 87,121.04, 120,232.28 and 51,334.92 is: 70,845.28
Step by Step Solution
- Step 1: Write the proportion equation
87,121.04 : 120,232.28 = 51,334.92 : x - Step 2: Convert to fraction form
87,121.04/120,232.28 = 51,334.92/x - Step 3: Cross multiply
87,121.04x = 120,232.28 × 51,334.92 - Step 4: Simplify right side
87,121.04x = 6,172,114,475.22 - Step 5: Solve for x
x = 6,172,114,475.22/87,121.04 - Step 6: Final answer
x = 70,845.28
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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.