Finding the Fourth Proportional to 80,119.74, 110,579.12 and 48,288.68
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Solution
The fourth proportional to 80,119.74, 110,579.12 and 48,288.68 is: 66,646.73
Step by Step Solution
- Step 1: Write the proportion equation
80,119.74 : 110,579.12 = 48,288.68 : x - Step 2: Convert to fraction form
80,119.74/110,579.12 = 48,288.68/x - Step 3: Cross multiply
80,119.74x = 110,579.12 × 48,288.68 - Step 4: Simplify right side
80,119.74x = 5,339,718,946.02 - Step 5: Solve for x
x = 5,339,718,946.02/80,119.74 - Step 6: Final answer
x = 66,646.73
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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.