Finding the Fourth Proportional to 81,034.03, 111,808.38 and 48,759.99
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Solution
The fourth proportional to 81,034.03, 111,808.38 and 48,759.99 is: 67,277.60
Step by Step Solution
- Step 1: Write the proportion equation
81,034.03 : 111,808.38 = 48,759.99 : x - Step 2: Convert to fraction form
81,034.03/111,808.38 = 48,759.99/x - Step 3: Cross multiply
81,034.03x = 111,808.38 × 48,759.99 - Step 4: Simplify right side
81,034.03x = 5,451,774,687.87 - Step 5: Solve for x
x = 5,451,774,687.87/81,034.03 - Step 6: Final answer
x = 67,277.60
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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.