Finding the Fourth Proportional to 75,575.31, 113,288.99 and 28,155.62
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Solution
The fourth proportional to 75,575.31, 113,288.99 and 28,155.62 is: 42,205.86
Step by Step Solution
- Step 1: Write the proportion equation
75,575.31 : 113,288.99 = 28,155.62 : x - Step 2: Convert to fraction form
75,575.31/113,288.99 = 28,155.62/x - Step 3: Cross multiply
75,575.31x = 113,288.99 × 28,155.62 - Step 4: Simplify right side
75,575.31x = 3,189,721,045.40 - Step 5: Solve for x
x = 3,189,721,045.40/75,575.31 - Step 6: Final answer
x = 42,205.86
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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.