Finding the Fourth Proportional to 94,917.20, 130,988.44 and 52,478.44
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Solution
The fourth proportional to 94,917.20, 130,988.44 and 52,478.44 is: 72,421.74
Step by Step Solution
- Step 1: Write the proportion equation
94,917.20 : 130,988.44 = 52,478.44 : x - Step 2: Convert to fraction form
94,917.20/130,988.44 = 52,478.44/x - Step 3: Cross multiply
94,917.20x = 130,988.44 × 52,478.44 - Step 4: Simplify right side
94,917.20x = 6,874,068,989.23 - Step 5: Solve for x
x = 6,874,068,989.23/94,917.20 - Step 6: Final answer
x = 72,421.74
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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.