Finding the Fourth Proportional to 86,661.36, 129,999.96 and 24,331.44
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Solution
The fourth proportional to 86,661.36, 129,999.96 and 24,331.44 is: 36,499.38
Step by Step Solution
- Step 1: Write the proportion equation
86,661.36 : 129,999.96 = 24,331.44 : x - Step 2: Convert to fraction form
86,661.36/129,999.96 = 24,331.44/x - Step 3: Cross multiply
86,661.36x = 129,999.96 × 24,331.44 - Step 4: Simplify right side
86,661.36x = 3,163,086,226.74 - Step 5: Solve for x
x = 3,163,086,226.74/86,661.36 - Step 6: Final answer
x = 36,499.38
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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.