Finding the Fourth Proportional to 69,420.16, 104,129.28 and 16,830.08
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Solution
The fourth proportional to 69,420.16, 104,129.28 and 16,830.08 is: 25,244.89
Step by Step Solution
- Step 1: Write the proportion equation
69,420.16 : 104,129.28 = 16,830.08 : x - Step 2: Convert to fraction form
69,420.16/104,129.28 = 16,830.08/x - Step 3: Cross multiply
69,420.16x = 104,129.28 × 16,830.08 - Step 4: Simplify right side
69,420.16x = 1,752,504,112.74 - Step 5: Solve for x
x = 1,752,504,112.74/69,420.16 - Step 6: Final answer
x = 25,244.89
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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.