Finding the Fourth Proportional to 86,206.53, 129,197.70 and 48,254.25
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Solution
The fourth proportional to 86,206.53, 129,197.70 and 48,254.25 is: 72,318.63
Step by Step Solution
- Step 1: Write the proportion equation
86,206.53 : 129,197.70 = 48,254.25 : x - Step 2: Convert to fraction form
86,206.53/129,197.70 = 48,254.25/x - Step 3: Cross multiply
86,206.53x = 129,197.70 × 48,254.25 - Step 4: Simplify right side
86,206.53x = 6,234,338,115.23 - Step 5: Solve for x
x = 6,234,338,115.23/86,206.53 - Step 6: Final answer
x = 72,318.63
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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.