Finding the Fourth Proportional to 70,881.08, 106,284.69 and 33,431.08
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Solution
The fourth proportional to 70,881.08, 106,284.69 and 33,431.08 is: 50,129.20
Step by Step Solution
- Step 1: Write the proportion equation
70,881.08 : 106,284.69 = 33,431.08 : x - Step 2: Convert to fraction form
70,881.08/106,284.69 = 33,431.08/x - Step 3: Cross multiply
70,881.08x = 106,284.69 × 33,431.08 - Step 4: Simplify right side
70,881.08x = 3,553,211,907.74 - Step 5: Solve for x
x = 3,553,211,907.74/70,881.08 - Step 6: Final answer
x = 50,129.20
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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.