Finding the Fourth Proportional to 73,031.63, 100,783.64 and 39,497.63
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Solution
The fourth proportional to 73,031.63, 100,783.64 and 39,497.63 is: 54,506.72
Step by Step Solution
- Step 1: Write the proportion equation
73,031.63 : 100,783.64 = 39,497.63 : x - Step 2: Convert to fraction form
73,031.63/100,783.64 = 39,497.63/x - Step 3: Cross multiply
73,031.63x = 100,783.64 × 39,497.63 - Step 4: Simplify right side
73,031.63x = 3,980,714,517.60 - Step 5: Solve for x
x = 3,980,714,517.60/73,031.63 - Step 6: Final answer
x = 54,506.72
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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.