Finding the Fourth Proportional to 76,824.01, 115,157.61 and 48,764.80
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Solution
The fourth proportional to 76,824.01, 115,157.61 and 48,764.80 is: 73,097.43
Step by Step Solution
- Step 1: Write the proportion equation
76,824.01 : 115,157.61 = 48,764.80 : x - Step 2: Convert to fraction form
76,824.01/115,157.61 = 48,764.80/x - Step 3: Cross multiply
76,824.01x = 115,157.61 × 48,764.80 - Step 4: Simplify right side
76,824.01x = 5,615,637,820.13 - Step 5: Solve for x
x = 5,615,637,820.13/76,824.01 - Step 6: Final answer
x = 73,097.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.