Finding the Fourth Proportional to 82,931.80, 124,397.70 and 27,527.80
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Solution
The fourth proportional to 82,931.80, 124,397.70 and 27,527.80 is: 41,291.70
Step by Step Solution
- Step 1: Write the proportion equation
82,931.80 : 124,397.70 = 27,527.80 : x - Step 2: Convert to fraction form
82,931.80/124,397.70 = 27,527.80/x - Step 3: Cross multiply
82,931.80x = 124,397.70 × 27,527.80 - Step 4: Simplify right side
82,931.80x = 3,424,395,006.06 - Step 5: Solve for x
x = 3,424,395,006.06/82,931.80 - Step 6: Final answer
x = 41,291.70
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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.