Finding the Fourth Proportional to 80,911.80, 121,346.10 and 24,751.80
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Solution
The fourth proportional to 80,911.80, 121,346.10 and 24,751.80 is: 37,121.09
Step by Step Solution
- Step 1: Write the proportion equation
80,911.80 : 121,346.10 = 24,751.80 : x - Step 2: Convert to fraction form
80,911.80/121,346.10 = 24,751.80/x - Step 3: Cross multiply
80,911.80x = 121,346.10 × 24,751.80 - Step 4: Simplify right side
80,911.80x = 3,003,534,397.98 - Step 5: Solve for x
x = 3,003,534,397.98/80,911.80 - Step 6: Final answer
x = 37,121.09
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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.