Finding the Fourth Proportional to 99,636.92, 149,482.72 and 49,656.68
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Solution
The fourth proportional to 99,636.92, 149,482.72 and 49,656.68 is: 74,498.65
Step by Step Solution
- Step 1: Write the proportion equation
99,636.92 : 149,482.72 = 49,656.68 : x - Step 2: Convert to fraction form
99,636.92/149,482.72 = 49,656.68/x - Step 3: Cross multiply
99,636.92x = 149,482.72 × 49,656.68 - Step 4: Simplify right side
99,636.92x = 7,422,815,592.57 - Step 5: Solve for x
x = 7,422,815,592.57/99,636.92 - Step 6: Final answer
x = 74,498.65
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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.