Finding the Fourth Proportional to 79,532.18, 109,756.50 and 43,723.09
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Solution
The fourth proportional to 79,532.18, 109,756.50 and 43,723.09 is: 60,339.02
Step by Step Solution
- Step 1: Write the proportion equation
79,532.18 : 109,756.50 = 43,723.09 : x - Step 2: Convert to fraction form
79,532.18/109,756.50 = 43,723.09/x - Step 3: Cross multiply
79,532.18x = 109,756.50 × 43,723.09 - Step 4: Simplify right side
79,532.18x = 4,798,893,546.76 - Step 5: Solve for x
x = 4,798,893,546.76/79,532.18 - Step 6: Final answer
x = 60,339.02
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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.