Finding the Fourth Proportional to 76,184.81, 105,132.13 and 41,728.99
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Solution
The fourth proportional to 76,184.81, 105,132.13 and 41,728.99 is: 57,584.41
Step by Step Solution
- Step 1: Write the proportion equation
76,184.81 : 105,132.13 = 41,728.99 : x - Step 2: Convert to fraction form
76,184.81/105,132.13 = 41,728.99/x - Step 3: Cross multiply
76,184.81x = 105,132.13 × 41,728.99 - Step 4: Simplify right side
76,184.81x = 4,387,057,234.30 - Step 5: Solve for x
x = 4,387,057,234.30/76,184.81 - Step 6: Final answer
x = 57,584.41
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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.