Finding the Fourth Proportional to 82,931.20, 124,365.84 and 26,757.20
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Solution
The fourth proportional to 82,931.20, 124,365.84 and 26,757.20 is: 40,125.81
Step by Step Solution
- Step 1: Write the proportion equation
82,931.20 : 124,365.84 = 26,757.20 : x - Step 2: Convert to fraction form
82,931.20/124,365.84 = 26,757.20/x - Step 3: Cross multiply
82,931.20x = 124,365.84 × 26,757.20 - Step 4: Simplify right side
82,931.20x = 3,327,681,654.05 - Step 5: Solve for x
x = 3,327,681,654.05/82,931.20 - Step 6: Final answer
x = 40,125.81
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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.