Finding the Fourth Proportional to 79,278.73, 109,346.68 and 50,618.09
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Solution
The fourth proportional to 79,278.73, 109,346.68 and 50,618.09 is: 69,815.95
Step by Step Solution
- Step 1: Write the proportion equation
79,278.73 : 109,346.68 = 50,618.09 : x - Step 2: Convert to fraction form
79,278.73/109,346.68 = 50,618.09/x - Step 3: Cross multiply
79,278.73x = 109,346.68 × 50,618.09 - Step 4: Simplify right side
79,278.73x = 5,534,920,089.44 - Step 5: Solve for x
x = 5,534,920,089.44/79,278.73 - Step 6: Final answer
x = 69,815.95
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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.