Finding the Fourth Proportional to 91,145.58, 125,780.49 and 50,856.99
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Solution
The fourth proportional to 91,145.58, 125,780.49 and 50,856.99 is: 70,182.42
Step by Step Solution
- Step 1: Write the proportion equation
91,145.58 : 125,780.49 = 50,856.99 : x - Step 2: Convert to fraction form
91,145.58/125,780.49 = 50,856.99/x - Step 3: Cross multiply
91,145.58x = 125,780.49 × 50,856.99 - Step 4: Simplify right side
91,145.58x = 6,396,817,122.13 - Step 5: Solve for x
x = 6,396,817,122.13/91,145.58 - Step 6: Final answer
x = 70,182.42
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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.