Finding the Fourth Proportional to 99,650.35, 149,461.50 and 28,579.08
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Solution
The fourth proportional to 99,650.35, 149,461.50 and 28,579.08 is: 42,864.60
Step by Step Solution
- Step 1: Write the proportion equation
99,650.35 : 149,461.50 = 28,579.08 : x - Step 2: Convert to fraction form
99,650.35/149,461.50 = 28,579.08/x - Step 3: Cross multiply
99,650.35x = 149,461.50 × 28,579.08 - Step 4: Simplify right side
99,650.35x = 4,271,471,992.35 - Step 5: Solve for x
x = 4,271,471,992.35/99,650.35 - Step 6: Final answer
x = 42,864.60
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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.