Finding the Fourth Proportional to 75,990.24, 114,011.28 and 40,933.44
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Solution
The fourth proportional to 75,990.24, 114,011.28 and 40,933.44 is: 61,414.12
Step by Step Solution
- Step 1: Write the proportion equation
75,990.24 : 114,011.28 = 40,933.44 : x - Step 2: Convert to fraction form
75,990.24/114,011.28 = 40,933.44/x - Step 3: Cross multiply
75,990.24x = 114,011.28 × 40,933.44 - Step 4: Simplify right side
75,990.24x = 4,666,873,889.20 - Step 5: Solve for x
x = 4,666,873,889.20/75,990.24 - Step 6: Final answer
x = 61,414.12
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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.