Finding the Fourth Proportional to 92,469.08, 138,703.62 and 31,683.95
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Solution
The fourth proportional to 92,469.08, 138,703.62 and 31,683.95 is: 47,525.92
Step by Step Solution
- Step 1: Write the proportion equation
92,469.08 : 138,703.62 = 31,683.95 : x - Step 2: Convert to fraction form
92,469.08/138,703.62 = 31,683.95/x - Step 3: Cross multiply
92,469.08x = 138,703.62 × 31,683.95 - Step 4: Simplify right side
92,469.08x = 4,394,677,867.38 - Step 5: Solve for x
x = 4,394,677,867.38/92,469.08 - Step 6: Final answer
x = 47,525.92
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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.