Finding the Fourth Proportional to 82,510.14, 113,805.18 and 75,726.06
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Solution
The fourth proportional to 82,510.14, 113,805.18 and 75,726.06 is: 104,447.99
Step by Step Solution
- Step 1: Write the proportion equation
82,510.14 : 113,805.18 = 75,726.06 : x - Step 2: Convert to fraction form
82,510.14/113,805.18 = 75,726.06/x - Step 3: Cross multiply
82,510.14x = 113,805.18 × 75,726.06 - Step 4: Simplify right side
82,510.14x = 8,618,017,888.99 - Step 5: Solve for x
x = 8,618,017,888.99/82,510.14 - Step 6: Final answer
x = 104,447.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.