Finding the Fourth Proportional to 86,208.24, 129,312.36 and 27,048.64
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Solution
The fourth proportional to 86,208.24, 129,312.36 and 27,048.64 is: 40,572.96
Step by Step Solution
- Step 1: Write the proportion equation
86,208.24 : 129,312.36 = 27,048.64 : x - Step 2: Convert to fraction form
86,208.24/129,312.36 = 27,048.64/x - Step 3: Cross multiply
86,208.24x = 129,312.36 × 27,048.64 - Step 4: Simplify right side
86,208.24x = 3,497,723,473.19 - Step 5: Solve for x
x = 3,497,723,473.19/86,208.24 - Step 6: Final answer
x = 40,572.96
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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.