Finding the Fourth Proportional to 97,821.69, 134,998.97 and 54,798.62
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Solution
The fourth proportional to 97,821.69, 134,998.97 and 54,798.62 is: 75,624.91
Step by Step Solution
- Step 1: Write the proportion equation
97,821.69 : 134,998.97 = 54,798.62 : x - Step 2: Convert to fraction form
97,821.69/134,998.97 = 54,798.62/x - Step 3: Cross multiply
97,821.69x = 134,998.97 × 54,798.62 - Step 4: Simplify right side
97,821.69x = 7,397,756,308.43 - Step 5: Solve for x
x = 7,397,756,308.43/97,821.69 - Step 6: Final answer
x = 75,624.91
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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.