Finding the Fourth Proportional to 115,603.36, 173,408.60 and 31,363.19
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Solution
The fourth proportional to 115,603.36, 173,408.60 and 31,363.19 is: 47,045.75
Step by Step Solution
- Step 1: Write the proportion equation
115,603.36 : 173,408.60 = 31,363.19 : x - Step 2: Convert to fraction form
115,603.36/173,408.60 = 31,363.19/x - Step 3: Cross multiply
115,603.36x = 173,408.60 × 31,363.19 - Step 4: Simplify right side
115,603.36x = 5,438,646,869.43 - Step 5: Solve for x
x = 5,438,646,869.43/115,603.36 - Step 6: Final answer
x = 47,045.75
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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.