Finding the Fourth Proportional to 87,772.14, 121,119.84 and 49,537.98
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Solution
The fourth proportional to 87,772.14, 121,119.84 and 49,537.98 is: 68,359.19
Step by Step Solution
- Step 1: Write the proportion equation
87,772.14 : 121,119.84 = 49,537.98 : x - Step 2: Convert to fraction form
87,772.14/121,119.84 = 49,537.98/x - Step 3: Cross multiply
87,772.14x = 121,119.84 × 49,537.98 - Step 4: Simplify right side
87,772.14x = 6,000,032,211.52 - Step 5: Solve for x
x = 6,000,032,211.52/87,772.14 - Step 6: Final answer
x = 68,359.19
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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.