Finding the Fourth Proportional to 79,533.18, 109,757.88 and 43,724.09
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Solution
The fourth proportional to 79,533.18, 109,757.88 and 43,724.09 is: 60,340.39
Step by Step Solution
- Step 1: Write the proportion equation
79,533.18 : 109,757.88 = 43,724.09 : x - Step 2: Convert to fraction form
79,533.18/109,757.88 = 43,724.09/x - Step 3: Cross multiply
79,533.18x = 109,757.88 × 43,724.09 - Step 4: Simplify right side
79,533.18x = 4,799,063,423.33 - Step 5: Solve for x
x = 4,799,063,423.33/79,533.18 - Step 6: Final answer
x = 60,340.39
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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.