Finding the Fourth Proportional to 76,832.88, 115,170.28 and 29,435.08
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Solution
The fourth proportional to 76,832.88, 115,170.28 and 29,435.08 is: 44,122.34
Step by Step Solution
- Step 1: Write the proportion equation
76,832.88 : 115,170.28 = 29,435.08 : x - Step 2: Convert to fraction form
76,832.88/115,170.28 = 29,435.08/x - Step 3: Cross multiply
76,832.88x = 115,170.28 × 29,435.08 - Step 4: Simplify right side
76,832.88x = 3,390,046,405.42 - Step 5: Solve for x
x = 3,390,046,405.42/76,832.88 - Step 6: Final answer
x = 44,122.34
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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.