Finding the Fourth Proportional to 79,901.15, 119,820.57 and 29,953.99
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Solution
The fourth proportional to 79,901.15, 119,820.57 and 29,953.99 is: 44,919.31
Step by Step Solution
- Step 1: Write the proportion equation
79,901.15 : 119,820.57 = 29,953.99 : x - Step 2: Convert to fraction form
79,901.15/119,820.57 = 29,953.99/x - Step 3: Cross multiply
79,901.15x = 119,820.57 × 29,953.99 - Step 4: Simplify right side
79,901.15x = 3,589,104,558.09 - Step 5: Solve for x
x = 3,589,104,558.09/79,901.15 - Step 6: Final answer
x = 44,919.31
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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.