Finding the Fourth Proportional to 76,939.99, 106,194.89 and 45,119.14
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Solution
The fourth proportional to 76,939.99, 106,194.89 and 45,119.14 is: 62,274.80
Step by Step Solution
- Step 1: Write the proportion equation
76,939.99 : 106,194.89 = 45,119.14 : x - Step 2: Convert to fraction form
76,939.99/106,194.89 = 45,119.14/x - Step 3: Cross multiply
76,939.99x = 106,194.89 × 45,119.14 - Step 4: Simplify right side
76,939.99x = 4,791,421,956.51 - Step 5: Solve for x
x = 4,791,421,956.51/76,939.99 - Step 6: Final answer
x = 62,274.80
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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.