Finding the Fourth Proportional to 87,872.40, 121,268.33 and 51,575.42
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Solution
The fourth proportional to 87,872.40, 121,268.33 and 51,575.42 is: 71,176.66
Step by Step Solution
- Step 1: Write the proportion equation
87,872.40 : 121,268.33 = 51,575.42 : x - Step 2: Convert to fraction form
87,872.40/121,268.33 = 51,575.42/x - Step 3: Cross multiply
87,872.40x = 121,268.33 × 51,575.42 - Step 4: Simplify right side
87,872.40x = 6,254,464,188.23 - Step 5: Solve for x
x = 6,254,464,188.23/87,872.40 - Step 6: Final answer
x = 71,176.66
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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.