Finding the Fourth Proportional to 75,251.84, 112,893.76 and 28,503.68
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Solution
The fourth proportional to 75,251.84, 112,893.76 and 28,503.68 is: 42,761.58
Step by Step Solution
- Step 1: Write the proportion equation
75,251.84 : 112,893.76 = 28,503.68 : x - Step 2: Convert to fraction form
75,251.84/112,893.76 = 28,503.68/x - Step 3: Cross multiply
75,251.84x = 112,893.76 × 28,503.68 - Step 4: Simplify right side
75,251.84x = 3,217,887,609.04 - Step 5: Solve for x
x = 3,217,887,609.04/75,251.84 - Step 6: Final answer
x = 42,761.58
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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.