Finding the Fourth Proportional to 84,986.08, 127,478.98 and 40,477.84
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Solution
The fourth proportional to 84,986.08, 127,478.98 and 40,477.84 is: 60,716.69
Step by Step Solution
- Step 1: Write the proportion equation
84,986.08 : 127,478.98 = 40,477.84 : x - Step 2: Convert to fraction form
84,986.08/127,478.98 = 40,477.84/x - Step 3: Cross multiply
84,986.08x = 127,478.98 × 40,477.84 - Step 4: Simplify right side
84,986.08x = 5,160,073,755.80 - Step 5: Solve for x
x = 5,160,073,755.80/84,986.08 - Step 6: Final answer
x = 60,716.69
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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.