Finding the Fourth Proportional to 79,610.10, 119,415.12 and 54,574.23
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Solution
The fourth proportional to 79,610.10, 119,415.12 and 54,574.23 is: 81,861.32
Step by Step Solution
- Step 1: Write the proportion equation
79,610.10 : 119,415.12 = 54,574.23 : x - Step 2: Convert to fraction form
79,610.10/119,415.12 = 54,574.23/x - Step 3: Cross multiply
79,610.10x = 119,415.12 × 54,574.23 - Step 4: Simplify right side
79,610.10x = 6,516,988,224.36 - Step 5: Solve for x
x = 6,516,988,224.36/79,610.10 - Step 6: Final answer
x = 81,861.32
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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.