Finding the Fourth Proportional to 75,342.40, 112,941.60 and 27,944.80
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Solution
The fourth proportional to 75,342.40, 112,941.60 and 27,944.80 is: 41,890.49
Step by Step Solution
- Step 1: Write the proportion equation
75,342.40 : 112,941.60 = 27,944.80 : x - Step 2: Convert to fraction form
75,342.40/112,941.60 = 27,944.80/x - Step 3: Cross multiply
75,342.40x = 112,941.60 × 27,944.80 - Step 4: Simplify right side
75,342.40x = 3,156,130,423.68 - Step 5: Solve for x
x = 3,156,130,423.68/75,342.40 - Step 6: Final answer
x = 41,890.49
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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.