Finding the Fourth Proportional to 75,107.53, 103,659.77 and 42,841.99
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Solution
The fourth proportional to 75,107.53, 103,659.77 and 42,841.99 is: 59,128.44
Step by Step Solution
- Step 1: Write the proportion equation
75,107.53 : 103,659.77 = 42,841.99 : x - Step 2: Convert to fraction form
75,107.53/103,659.77 = 42,841.99/x - Step 3: Cross multiply
75,107.53x = 103,659.77 × 42,841.99 - Step 4: Simplify right side
75,107.53x = 4,440,990,677.70 - Step 5: Solve for x
x = 4,440,990,677.70/75,107.53 - Step 6: Final answer
x = 59,128.44
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.