Finding the Fourth Proportional to 87,758.28, 121,095.99 and 49,515.63
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Solution
The fourth proportional to 87,758.28, 121,095.99 and 49,515.63 is: 68,325.68
Step by Step Solution
- Step 1: Write the proportion equation
87,758.28 : 121,095.99 = 49,515.63 : x - Step 2: Convert to fraction form
87,758.28/121,095.99 = 49,515.63/x - Step 3: Cross multiply
87,758.28x = 121,095.99 × 49,515.63 - Step 4: Simplify right side
87,758.28x = 5,996,144,235.32 - Step 5: Solve for x
x = 5,996,144,235.32/87,758.28 - Step 6: Final answer
x = 68,325.68
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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.