Finding the Fourth Proportional to 79,678.77, 119,518.16 and 26,356.44
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Solution
The fourth proportional to 79,678.77, 119,518.16 and 26,356.44 is: 39,534.66
Step by Step Solution
- Step 1: Write the proportion equation
79,678.77 : 119,518.16 = 26,356.44 : x - Step 2: Convert to fraction form
79,678.77/119,518.16 = 26,356.44/x - Step 3: Cross multiply
79,678.77x = 119,518.16 × 26,356.44 - Step 4: Simplify right side
79,678.77x = 3,150,073,212.95 - Step 5: Solve for x
x = 3,150,073,212.95/79,678.77 - Step 6: Final answer
x = 39,534.66
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1.5x scale
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.