Finding the Fourth Proportional to 90,725.99, 125,206.02 and 50,443.88
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Solution
The fourth proportional to 90,725.99, 125,206.02 and 50,443.88 is: 69,614.86
Step by Step Solution
- Step 1: Write the proportion equation
90,725.99 : 125,206.02 = 50,443.88 : x - Step 2: Convert to fraction form
90,725.99/125,206.02 = 50,443.88/x - Step 3: Cross multiply
90,725.99x = 125,206.02 × 50,443.88 - Step 4: Simplify right side
90,725.99x = 6,315,876,822.13 - Step 5: Solve for x
x = 6,315,876,822.13/90,725.99 - Step 6: Final answer
x = 69,614.86
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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.