Finding the Fourth Proportional to 86,490.53, 129,741.26 and 36,564.05
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Solution
The fourth proportional to 86,490.53, 129,741.26 and 36,564.05 is: 54,848.39
Step by Step Solution
- Step 1: Write the proportion equation
86,490.53 : 129,741.26 = 36,564.05 : x - Step 2: Convert to fraction form
86,490.53/129,741.26 = 36,564.05/x - Step 3: Cross multiply
86,490.53x = 129,741.26 × 36,564.05 - Step 4: Simplify right side
86,490.53x = 4,743,866,059.24 - Step 5: Solve for x
x = 4,743,866,059.24/86,490.53 - Step 6: Final answer
x = 54,848.39
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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.