Finding the Fourth Proportional to 87,898.44, 121,300.16 and 47,612.08
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Solution
The fourth proportional to 87,898.44, 121,300.16 and 47,612.08 is: 65,704.84
Step by Step Solution
- Step 1: Write the proportion equation
87,898.44 : 121,300.16 = 47,612.08 : x - Step 2: Convert to fraction form
87,898.44/121,300.16 = 47,612.08/x - Step 3: Cross multiply
87,898.44x = 121,300.16 × 47,612.08 - Step 4: Simplify right side
87,898.44x = 5,775,352,921.93 - Step 5: Solve for x
x = 5,775,352,921.93/87,898.44 - Step 6: Final answer
x = 65,704.84
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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.