Finding the Fourth Proportional to 82,280.13, 123,420.19 and 19,950.63
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Solution
The fourth proportional to 82,280.13, 123,420.19 and 19,950.63 is: 29,925.94
Step by Step Solution
- Step 1: Write the proportion equation
82,280.13 : 123,420.19 = 19,950.63 : x - Step 2: Convert to fraction form
82,280.13/123,420.19 = 19,950.63/x - Step 3: Cross multiply
82,280.13x = 123,420.19 × 19,950.63 - Step 4: Simplify right side
82,280.13x = 2,462,310,545.22 - Step 5: Solve for x
x = 2,462,310,545.22/82,280.13 - Step 6: Final answer
x = 29,925.94
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Similar ratio
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1.5x scale
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.