Finding the Fourth Proportional to 115,427.45, 173,119.31 and 40,529.99
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Solution
The fourth proportional to 115,427.45, 173,119.31 and 40,529.99 is: 60,787.31
Step by Step Solution
- Step 1: Write the proportion equation
115,427.45 : 173,119.31 = 40,529.99 : x - Step 2: Convert to fraction form
115,427.45/173,119.31 = 40,529.99/x - Step 3: Cross multiply
115,427.45x = 173,119.31 × 40,529.99 - Step 4: Simplify right side
115,427.45x = 7,016,523,700.46 - Step 5: Solve for x
x = 7,016,523,700.46/115,427.45 - Step 6: Final answer
x = 60,787.31
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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.