Finding the Fourth Proportional to 86,437.14, 129,644.73 and 33,883.53
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Solution
The fourth proportional to 86,437.14, 129,644.73 and 33,883.53 is: 50,820.99
Step by Step Solution
- Step 1: Write the proportion equation
86,437.14 : 129,644.73 = 33,883.53 : x - Step 2: Convert to fraction form
86,437.14/129,644.73 = 33,883.53/x - Step 3: Cross multiply
86,437.14x = 129,644.73 × 33,883.53 - Step 4: Simplify right side
86,437.14x = 4,392,821,098.30 - Step 5: Solve for x
x = 4,392,821,098.30/86,437.14 - Step 6: Final answer
x = 50,820.99
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1.5x scale
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.