Finding the Fourth Proportional to 75,408.19, 113,138.55 and 47,294.98
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Solution
The fourth proportional to 75,408.19, 113,138.55 and 47,294.98 is: 70,958.94
Step by Step Solution
- Step 1: Write the proportion equation
75,408.19 : 113,138.55 = 47,294.98 : x - Step 2: Convert to fraction form
75,408.19/113,138.55 = 47,294.98/x - Step 3: Cross multiply
75,408.19x = 113,138.55 × 47,294.98 - Step 4: Simplify right side
75,408.19x = 5,350,885,459.48 - Step 5: Solve for x
x = 5,350,885,459.48/75,408.19 - Step 6: Final answer
x = 70,958.94
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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.