Finding the Fourth Proportional to 75,059.50, 112,589.36 and 18,899.62
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Solution
The fourth proportional to 75,059.50, 112,589.36 and 18,899.62 is: 28,349.46
Step by Step Solution
- Step 1: Write the proportion equation
75,059.50 : 112,589.36 = 18,899.62 : x - Step 2: Convert to fraction form
75,059.50/112,589.36 = 18,899.62/x - Step 3: Cross multiply
75,059.50x = 112,589.36 × 18,899.62 - Step 4: Simplify right side
75,059.50x = 2,127,896,120.04 - Step 5: Solve for x
x = 2,127,896,120.04/75,059.50 - Step 6: Final answer
x = 28,349.46
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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.