Finding the Fourth Proportional to 76,881.38, 115,341.50 and 21,477.38
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Solution
The fourth proportional to 76,881.38, 115,341.50 and 21,477.38 is: 32,221.49
Step by Step Solution
- Step 1: Write the proportion equation
76,881.38 : 115,341.50 = 21,477.38 : x - Step 2: Convert to fraction form
76,881.38/115,341.50 = 21,477.38/x - Step 3: Cross multiply
76,881.38x = 115,341.50 × 21,477.38 - Step 4: Simplify right side
76,881.38x = 2,477,232,702.26 - Step 5: Solve for x
x = 2,477,232,702.26/76,881.38 - Step 6: Final answer
x = 32,221.49
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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.