Finding the Fourth Proportional to 75,294.70, 113,082.45 and 66,291.99
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Solution
The fourth proportional to 75,294.70, 113,082.45 and 66,291.99 is: 99,561.59
Step by Step Solution
- Step 1: Write the proportion equation
75,294.70 : 113,082.45 = 66,291.99 : x - Step 2: Convert to fraction form
75,294.70/113,082.45 = 66,291.99/x - Step 3: Cross multiply
75,294.70x = 113,082.45 × 66,291.99 - Step 4: Simplify right side
75,294.70x = 7,496,459,971.92 - Step 5: Solve for x
x = 7,496,459,971.92/75,294.70 - Step 6: Final answer
x = 99,561.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.