Finding the Fourth Proportional to 73,965.13, 102,073.49 and 40,431.13
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Solution
The fourth proportional to 73,965.13, 102,073.49 and 40,431.13 is: 55,795.84
Step by Step Solution
- Step 1: Write the proportion equation
73,965.13 : 102,073.49 = 40,431.13 : x - Step 2: Convert to fraction form
73,965.13/102,073.49 = 40,431.13/x - Step 3: Cross multiply
73,965.13x = 102,073.49 × 40,431.13 - Step 4: Simplify right side
73,965.13x = 4,126,946,543.74 - Step 5: Solve for x
x = 4,126,946,543.74/73,965.13 - Step 6: Final answer
x = 55,795.84
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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.