Finding the Fourth Proportional to 102,639.30, 153,980.55 and 32,525.70
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Solution
The fourth proportional to 102,639.30, 153,980.55 and 32,525.70 is: 48,795.39
Step by Step Solution
- Step 1: Write the proportion equation
102,639.30 : 153,980.55 = 32,525.70 : x - Step 2: Convert to fraction form
102,639.30/153,980.55 = 32,525.70/x - Step 3: Cross multiply
102,639.30x = 153,980.55 × 32,525.70 - Step 4: Simplify right side
102,639.30x = 5,008,325,175.14 - Step 5: Solve for x
x = 5,008,325,175.14/102,639.30 - Step 6: Final answer
x = 48,795.39
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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.