Finding the Fourth Proportional to 87,873.84, 121,275.72 and 50,154.48
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Solution
The fourth proportional to 87,873.84, 121,275.72 and 50,154.48 is: 69,218.79
Step by Step Solution
- Step 1: Write the proportion equation
87,873.84 : 121,275.72 = 50,154.48 : x - Step 2: Convert to fraction form
87,873.84/121,275.72 = 50,154.48/x - Step 3: Cross multiply
87,873.84x = 121,275.72 × 50,154.48 - Step 4: Simplify right side
87,873.84x = 6,082,520,673.23 - Step 5: Solve for x
x = 6,082,520,673.23/87,873.84 - Step 6: Final answer
x = 69,218.79
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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.