Finding the Fourth Proportional to 75,919.24, 113,878.14 and 25,998.76
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Solution
The fourth proportional to 75,919.24, 113,878.14 and 25,998.76 is: 38,997.89
Step by Step Solution
- Step 1: Write the proportion equation
75,919.24 : 113,878.14 = 25,998.76 : x - Step 2: Convert to fraction form
75,919.24/113,878.14 = 25,998.76/x - Step 3: Cross multiply
75,919.24x = 113,878.14 × 25,998.76 - Step 4: Simplify right side
75,919.24x = 2,960,690,431.11 - Step 5: Solve for x
x = 2,960,690,431.11/75,919.24 - Step 6: Final answer
x = 38,997.89
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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.