Finding the Fourth Proportional to 75,890.16, 113,773.68 and 67,586.31
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Solution
The fourth proportional to 75,890.16, 113,773.68 and 67,586.31 is: 101,324.64
Step by Step Solution
- Step 1: Write the proportion equation
75,890.16 : 113,773.68 = 67,586.31 : x - Step 2: Convert to fraction form
75,890.16/113,773.68 = 67,586.31/x - Step 3: Cross multiply
75,890.16x = 113,773.68 × 67,586.31 - Step 4: Simplify right side
75,890.16x = 7,689,543,206.32 - Step 5: Solve for x
x = 7,689,543,206.32/75,890.16 - Step 6: Final answer
x = 101,324.64
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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.