Finding the Fourth Proportional to 75,657.70, 113,486.55 and 46,133.20
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Solution
The fourth proportional to 75,657.70, 113,486.55 and 46,133.20 is: 69,199.80
Step by Step Solution
- Step 1: Write the proportion equation
75,657.70 : 113,486.55 = 46,133.20 : x - Step 2: Convert to fraction form
75,657.70/113,486.55 = 46,133.20/x - Step 3: Cross multiply
75,657.70x = 113,486.55 × 46,133.20 - Step 4: Simplify right side
75,657.70x = 5,235,497,708.46 - Step 5: Solve for x
x = 5,235,497,708.46/75,657.70 - Step 6: Final answer
x = 69,199.80
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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.