Finding the Fourth Proportional to 75,863.34, 113,827.80 and 29,105.28
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Solution
The fourth proportional to 75,863.34, 113,827.80 and 29,105.28 is: 43,670.50
Step by Step Solution
- Step 1: Write the proportion equation
75,863.34 : 113,827.80 = 29,105.28 : x - Step 2: Convert to fraction form
75,863.34/113,827.80 = 29,105.28/x - Step 3: Cross multiply
75,863.34x = 113,827.80 × 29,105.28 - Step 4: Simplify right side
75,863.34x = 3,312,989,990.78 - Step 5: Solve for x
x = 3,312,989,990.78/75,863.34 - Step 6: Final answer
x = 43,670.50
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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.