Finding the Fourth Proportional to 82,045.36, 123,070.65 and 25,885.99
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Solution
The fourth proportional to 82,045.36, 123,070.65 and 25,885.99 is: 38,829.81
Step by Step Solution
- Step 1: Write the proportion equation
82,045.36 : 123,070.65 = 25,885.99 : x - Step 2: Convert to fraction form
82,045.36/123,070.65 = 25,885.99/x - Step 3: Cross multiply
82,045.36x = 123,070.65 × 25,885.99 - Step 4: Simplify right side
82,045.36x = 3,185,805,615.19 - Step 5: Solve for x
x = 3,185,805,615.19/82,045.36 - Step 6: Final answer
x = 38,829.81
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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.