Finding the Fourth Proportional to 76,883.96, 115,232.44 and 54,401.12
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Solution
The fourth proportional to 76,883.96, 115,232.44 and 54,401.12 is: 81,535.52
Step by Step Solution
- Step 1: Write the proportion equation
76,883.96 : 115,232.44 = 54,401.12 : x - Step 2: Convert to fraction form
76,883.96/115,232.44 = 54,401.12/x - Step 3: Cross multiply
76,883.96x = 115,232.44 × 54,401.12 - Step 4: Simplify right side
76,883.96x = 6,268,773,402.23 - Step 5: Solve for x
x = 6,268,773,402.23/76,883.96 - Step 6: Final answer
x = 81,535.52
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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.