Finding the Fourth Proportional to 87,459.44, 131,199.84 and 31,305.47
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Solution
The fourth proportional to 87,459.44, 131,199.84 and 31,305.47 is: 46,962.02
Step by Step Solution
- Step 1: Write the proportion equation
87,459.44 : 131,199.84 = 31,305.47 : x - Step 2: Convert to fraction form
87,459.44/131,199.84 = 31,305.47/x - Step 3: Cross multiply
87,459.44x = 131,199.84 × 31,305.47 - Step 4: Simplify right side
87,459.44x = 4,107,271,999.13 - Step 5: Solve for x
x = 4,107,271,999.13/87,459.44 - Step 6: Final answer
x = 46,962.02
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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.