Finding the Fourth Proportional to 99,777.42, 149,722.02 and 53,029.08
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Solution
The fourth proportional to 99,777.42, 149,722.02 and 53,029.08 is: 79,573.32
Step by Step Solution
- Step 1: Write the proportion equation
99,777.42 : 149,722.02 = 53,029.08 : x - Step 2: Convert to fraction form
99,777.42/149,722.02 = 53,029.08/x - Step 3: Cross multiply
99,777.42x = 149,722.02 × 53,029.08 - Step 4: Simplify right side
99,777.42x = 7,939,620,976.34 - Step 5: Solve for x
x = 7,939,620,976.34/99,777.42 - Step 6: Final answer
x = 79,573.32
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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.