Finding the Fourth Proportional to 80,884.80, 121,327.20 and 61,201.80
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Solution
The fourth proportional to 80,884.80, 121,327.20 and 61,201.80 is: 91,802.70
Step by Step Solution
- Step 1: Write the proportion equation
80,884.80 : 121,327.20 = 61,201.80 : x - Step 2: Convert to fraction form
80,884.80/121,327.20 = 61,201.80/x - Step 3: Cross multiply
80,884.80x = 121,327.20 × 61,201.80 - Step 4: Simplify right side
80,884.80x = 7,425,443,028.96 - Step 5: Solve for x
x = 7,425,443,028.96/80,884.80 - Step 6: Final answer
x = 91,802.70
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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.