Finding the Fourth Proportional to 110,652.88, 165,979.41 and 47,431.97
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Solution
The fourth proportional to 110,652.88, 165,979.41 and 47,431.97 is: 71,147.99
Step by Step Solution
- Step 1: Write the proportion equation
110,652.88 : 165,979.41 = 47,431.97 : x - Step 2: Convert to fraction form
110,652.88/165,979.41 = 47,431.97/x - Step 3: Cross multiply
110,652.88x = 165,979.41 × 47,431.97 - Step 4: Simplify right side
110,652.88x = 7,872,730,395.74 - Step 5: Solve for x
x = 7,872,730,395.74/110,652.88 - Step 6: Final answer
x = 71,147.99
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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.