Finding the Fourth Proportional to 75,793.56, 113,690.70 and 19,629.74
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Solution
The fourth proportional to 75,793.56, 113,690.70 and 19,629.74 is: 29,444.70
Step by Step Solution
- Step 1: Write the proportion equation
75,793.56 : 113,690.70 = 19,629.74 : x - Step 2: Convert to fraction form
75,793.56/113,690.70 = 19,629.74/x - Step 3: Cross multiply
75,793.56x = 113,690.70 × 19,629.74 - Step 4: Simplify right side
75,793.56x = 2,231,718,312.96 - Step 5: Solve for x
x = 2,231,718,312.96/75,793.56 - Step 6: Final answer
x = 29,444.70
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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.