Finding the Fourth Proportional to 80,028.09, 120,117.48 and 40,613.49
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Solution
The fourth proportional to 80,028.09, 120,117.48 and 40,613.49 is: 60,958.47
Step by Step Solution
- Step 1: Write the proportion equation
80,028.09 : 120,117.48 = 40,613.49 : x - Step 2: Convert to fraction form
80,028.09/120,117.48 = 40,613.49/x - Step 3: Cross multiply
80,028.09x = 120,117.48 × 40,613.49 - Step 4: Simplify right side
80,028.09x = 4,878,390,072.81 - Step 5: Solve for x
x = 4,878,390,072.81/80,028.09 - Step 6: Final answer
x = 60,958.47
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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.