Finding the Fourth Proportional to 75,452.18, 113,178.24 and 19,292.40
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Solution
The fourth proportional to 75,452.18, 113,178.24 and 19,292.40 is: 28,938.59
Step by Step Solution
- Step 1: Write the proportion equation
75,452.18 : 113,178.24 = 19,292.40 : x - Step 2: Convert to fraction form
75,452.18/113,178.24 = 19,292.40/x - Step 3: Cross multiply
75,452.18x = 113,178.24 × 19,292.40 - Step 4: Simplify right side
75,452.18x = 2,183,479,877.38 - Step 5: Solve for x
x = 2,183,479,877.38/75,452.18 - Step 6: Final answer
x = 28,938.59
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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.