Finding the Fourth Proportional to 86,497.67, 119,189.66 and 63,800.70
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Solution
The fourth proportional to 86,497.67, 119,189.66 and 63,800.70 is: 87,914.32
Step by Step Solution
- Step 1: Write the proportion equation
86,497.67 : 119,189.66 = 63,800.70 : x - Step 2: Convert to fraction form
86,497.67/119,189.66 = 63,800.70/x - Step 3: Cross multiply
86,497.67x = 119,189.66 × 63,800.70 - Step 4: Simplify right side
86,497.67x = 7,604,383,421.76 - Step 5: Solve for x
x = 7,604,383,421.76/86,497.67 - Step 6: Final answer
x = 87,914.32
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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.