Finding the Fourth Proportional to 88,144.34, 121,609.68 and 49,898.66
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Solution
The fourth proportional to 88,144.34, 121,609.68 and 49,898.66 is: 68,843.45
Step by Step Solution
- Step 1: Write the proportion equation
88,144.34 : 121,609.68 = 49,898.66 : x - Step 2: Convert to fraction form
88,144.34/121,609.68 = 49,898.66/x - Step 3: Cross multiply
88,144.34x = 121,609.68 × 49,898.66 - Step 4: Simplify right side
88,144.34x = 6,068,160,075.03 - Step 5: Solve for x
x = 6,068,160,075.03/88,144.34 - Step 6: Final answer
x = 68,843.45
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1.5x scale
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.