Finding the Fourth Proportional to 98,360.26, 135,732.09 and 53,639.62
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Solution
The fourth proportional to 98,360.26, 135,732.09 and 53,639.62 is: 74,019.91
Step by Step Solution
- Step 1: Write the proportion equation
98,360.26 : 135,732.09 = 53,639.62 : x - Step 2: Convert to fraction form
98,360.26/135,732.09 = 53,639.62/x - Step 3: Cross multiply
98,360.26x = 135,732.09 × 53,639.62 - Step 4: Simplify right side
98,360.26x = 7,280,617,729.41 - Step 5: Solve for x
x = 7,280,617,729.41/98,360.26 - Step 6: Final answer
x = 74,019.91
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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.