Finding the Fourth Proportional to 75,279.42, 112,955.99 and 53,234.46
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Solution
The fourth proportional to 75,279.42, 112,955.99 and 53,234.46 is: 79,877.75
Step by Step Solution
- Step 1: Write the proportion equation
75,279.42 : 112,955.99 = 53,234.46 : x - Step 2: Convert to fraction form
75,279.42/112,955.99 = 53,234.46/x - Step 3: Cross multiply
75,279.42x = 112,955.99 × 53,234.46 - Step 4: Simplify right side
75,279.42x = 6,013,150,865.24 - Step 5: Solve for x
x = 6,013,150,865.24/75,279.42 - Step 6: Final answer
x = 79,877.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.