Finding the Fourth Proportional to 80,021.81, 110,420.68 and 44,209.68
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Solution
The fourth proportional to 80,021.81, 110,420.68 and 44,209.68 is: 61,004.16
Step by Step Solution
- Step 1: Write the proportion equation
80,021.81 : 110,420.68 = 44,209.68 : x - Step 2: Convert to fraction form
80,021.81/110,420.68 = 44,209.68/x - Step 3: Cross multiply
80,021.81x = 110,420.68 × 44,209.68 - Step 4: Simplify right side
80,021.81x = 4,881,662,817.66 - Step 5: Solve for x
x = 4,881,662,817.66/80,021.81 - Step 6: Final answer
x = 61,004.16
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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.