Finding the Fourth Proportional to 79,285.79, 109,471.79 and 51,040.68
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Solution
The fourth proportional to 79,285.79, 109,471.79 and 51,040.68 is: 70,473.09
Step by Step Solution
- Step 1: Write the proportion equation
79,285.79 : 109,471.79 = 51,040.68 : x - Step 2: Convert to fraction form
79,285.79/109,471.79 = 51,040.68/x - Step 3: Cross multiply
79,285.79x = 109,471.79 × 51,040.68 - Step 4: Simplify right side
79,285.79x = 5,587,514,347.21 - Step 5: Solve for x
x = 5,587,514,347.21/79,285.79 - Step 6: Final answer
x = 70,473.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.