Finding the Fourth Proportional to 86,729.13, 130,000.44 and 56,732.00
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Solution
The fourth proportional to 86,729.13, 130,000.44 and 56,732.00 is: 85,036.99
Step by Step Solution
- Step 1: Write the proportion equation
86,729.13 : 130,000.44 = 56,732.00 : x - Step 2: Convert to fraction form
86,729.13/130,000.44 = 56,732.00/x - Step 3: Cross multiply
86,729.13x = 130,000.44 × 56,732.00 - Step 4: Simplify right side
86,729.13x = 7,375,184,524.82 - Step 5: Solve for x
x = 7,375,184,524.82/86,729.13 - Step 6: Final answer
x = 85,036.99
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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.