Finding the Fourth Proportional to 79,929.92, 110,283.96 and 51,236.48
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Solution
The fourth proportional to 79,929.92, 110,283.96 and 51,236.48 is: 70,693.95
Step by Step Solution
- Step 1: Write the proportion equation
79,929.92 : 110,283.96 = 51,236.48 : x - Step 2: Convert to fraction form
79,929.92/110,283.96 = 51,236.48/x - Step 3: Cross multiply
79,929.92x = 110,283.96 × 51,236.48 - Step 4: Simplify right side
79,929.92x = 5,650,561,910.86 - Step 5: Solve for x
x = 5,650,561,910.86/79,929.92 - Step 6: Final answer
x = 70,693.95
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1.5x scale
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.