Finding the Fourth Proportional to 76,509.68, 114,720.38 and 29,707.88
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Solution
The fourth proportional to 76,509.68, 114,720.38 and 29,707.88 is: 44,544.68
Step by Step Solution
- Step 1: Write the proportion equation
76,509.68 : 114,720.38 = 29,707.88 : x - Step 2: Convert to fraction form
76,509.68/114,720.38 = 29,707.88/x - Step 3: Cross multiply
76,509.68x = 114,720.38 × 29,707.88 - Step 4: Simplify right side
76,509.68x = 3,408,099,282.59 - Step 5: Solve for x
x = 3,408,099,282.59/76,509.68 - Step 6: Final answer
x = 44,544.68
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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.