Finding the Fourth Proportional to 90,718.26, 125,195.47 and 50,432.70
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Solution
The fourth proportional to 90,718.26, 125,195.47 and 50,432.70 is: 69,599.49
Step by Step Solution
- Step 1: Write the proportion equation
90,718.26 : 125,195.47 = 50,432.70 : x - Step 2: Convert to fraction form
90,718.26/125,195.47 = 50,432.70/x - Step 3: Cross multiply
90,718.26x = 125,195.47 × 50,432.70 - Step 4: Simplify right side
90,718.26x = 6,313,945,115.16 - Step 5: Solve for x
x = 6,313,945,115.16/90,718.26 - Step 6: Final answer
x = 69,599.49
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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.