Finding the Fourth Proportional to 73,408.20, 110,112.30 and 57,661.80
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Solution
The fourth proportional to 73,408.20, 110,112.30 and 57,661.80 is: 86,492.70
Step by Step Solution
- Step 1: Write the proportion equation
73,408.20 : 110,112.30 = 57,661.80 : x - Step 2: Convert to fraction form
73,408.20/110,112.30 = 57,661.80/x - Step 3: Cross multiply
73,408.20x = 110,112.30 × 57,661.80 - Step 4: Simplify right side
73,408.20x = 6,349,273,420.14 - Step 5: Solve for x
x = 6,349,273,420.14/73,408.20 - Step 6: Final answer
x = 86,492.70
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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.