Finding the Fourth Proportional to 80,854.49, 121,277.62 and 30,930.75
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Solution
The fourth proportional to 80,854.49, 121,277.62 and 30,930.75 is: 46,394.55
Step by Step Solution
- Step 1: Write the proportion equation
80,854.49 : 121,277.62 = 30,930.75 : x - Step 2: Convert to fraction form
80,854.49/121,277.62 = 30,930.75/x - Step 3: Cross multiply
80,854.49x = 121,277.62 × 30,930.75 - Step 4: Simplify right side
80,854.49x = 3,751,207,744.82 - Step 5: Solve for x
x = 3,751,207,744.82/80,854.49 - Step 6: Final answer
x = 46,394.55
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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.