Finding the Fourth Proportional to 90,158.24, 124,418.36 and 49,322.70
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Solution
The fourth proportional to 90,158.24, 124,418.36 and 49,322.70 is: 68,065.32
Step by Step Solution
- Step 1: Write the proportion equation
90,158.24 : 124,418.36 = 49,322.70 : x - Step 2: Convert to fraction form
90,158.24/124,418.36 = 49,322.70/x - Step 3: Cross multiply
90,158.24x = 124,418.36 × 49,322.70 - Step 4: Simplify right side
90,158.24x = 6,136,649,568.08 - Step 5: Solve for x
x = 6,136,649,568.08/90,158.24 - Step 6: Final answer
x = 68,065.32
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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.