Finding the Fourth Proportional to 87,753.36, 121,099.29 and 47,467.08
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Solution
The fourth proportional to 87,753.36, 121,099.29 and 47,467.08 is: 65,504.38
Step by Step Solution
- Step 1: Write the proportion equation
87,753.36 : 121,099.29 = 47,467.08 : x - Step 2: Convert to fraction form
87,753.36/121,099.29 = 47,467.08/x - Step 3: Cross multiply
87,753.36x = 121,099.29 × 47,467.08 - Step 4: Simplify right side
87,753.36x = 5,748,229,686.37 - Step 5: Solve for x
x = 5,748,229,686.37/87,753.36 - Step 6: Final answer
x = 65,504.38
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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.