Finding the Fourth Proportional to 86,189.24, 129,283.85 and 27,029.67
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Solution
The fourth proportional to 86,189.24, 129,283.85 and 27,029.67 is: 40,544.50
Step by Step Solution
- Step 1: Write the proportion equation
86,189.24 : 129,283.85 = 27,029.67 : x - Step 2: Convert to fraction form
86,189.24/129,283.85 = 27,029.67/x - Step 3: Cross multiply
86,189.24x = 129,283.85 × 27,029.67 - Step 4: Simplify right side
86,189.24x = 3,494,499,666.68 - Step 5: Solve for x
x = 3,494,499,666.68/86,189.24 - Step 6: Final answer
x = 40,544.50
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Double scale
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Similar ratio
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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.