Finding the Fourth Proportional to 115,491.75, 159,378.62 and 62,499.75
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Solution
The fourth proportional to 115,491.75, 159,378.62 and 62,499.75 is: 86,249.66
Step by Step Solution
- Step 1: Write the proportion equation
115,491.75 : 159,378.62 = 62,499.75 : x - Step 2: Convert to fraction form
115,491.75/159,378.62 = 62,499.75/x - Step 3: Cross multiply
115,491.75x = 159,378.62 × 62,499.75 - Step 4: Simplify right side
115,491.75x = 9,961,123,592.85 - Step 5: Solve for x
x = 9,961,123,592.85/115,491.75 - Step 6: Final answer
x = 86,249.66
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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.