Finding the Fourth Proportional to 67,680.50, 101,486.58 and 39,608.99
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Solution
The fourth proportional to 67,680.50, 101,486.58 and 39,608.99 is: 59,393.48
Step by Step Solution
- Step 1: Write the proportion equation
67,680.50 : 101,486.58 = 39,608.99 : x - Step 2: Convert to fraction form
67,680.50/101,486.58 = 39,608.99/x - Step 3: Cross multiply
67,680.50x = 101,486.58 × 39,608.99 - Step 4: Simplify right side
67,680.50x = 4,019,780,656.96 - Step 5: Solve for x
x = 4,019,780,656.96/67,680.50 - Step 6: Final answer
x = 59,393.48
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1.5x scale
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.