Finding the Fourth Proportional to 74,055.12, 102,195.84 and 40,521.12
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Solution
The fourth proportional to 74,055.12, 102,195.84 and 40,521.12 is: 55,919.02
Step by Step Solution
- Step 1: Write the proportion equation
74,055.12 : 102,195.84 = 40,521.12 : x - Step 2: Convert to fraction form
74,055.12/102,195.84 = 40,521.12/x - Step 3: Cross multiply
74,055.12x = 102,195.84 × 40,521.12 - Step 4: Simplify right side
74,055.12x = 4,141,089,896.14 - Step 5: Solve for x
x = 4,141,089,896.14/74,055.12 - Step 6: Final answer
x = 55,919.02
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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.