Finding the Fourth Proportional to 73,031.06, 100,782.93 and 39,497.06
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Solution
The fourth proportional to 73,031.06, 100,782.93 and 39,497.06 is: 54,505.98
Step by Step Solution
- Step 1: Write the proportion equation
73,031.06 : 100,782.93 = 39,497.06 : x - Step 2: Convert to fraction form
73,031.06/100,782.93 = 39,497.06/x - Step 3: Cross multiply
73,031.06x = 100,782.93 × 39,497.06 - Step 4: Simplify right side
73,031.06x = 3,980,629,433.19 - Step 5: Solve for x
x = 3,980,629,433.19/73,031.06 - Step 6: Final answer
x = 54,505.98
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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.