Finding the Fourth Proportional to 81,372.24, 122,058.36 and 22,206.60
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Solution
The fourth proportional to 81,372.24, 122,058.36 and 22,206.60 is: 33,309.90
Step by Step Solution
- Step 1: Write the proportion equation
81,372.24 : 122,058.36 = 22,206.60 : x - Step 2: Convert to fraction form
81,372.24/122,058.36 = 22,206.60/x - Step 3: Cross multiply
81,372.24x = 122,058.36 × 22,206.60 - Step 4: Simplify right side
81,372.24x = 2,710,501,177.18 - Step 5: Solve for x
x = 2,710,501,177.18/81,372.24 - Step 6: Final answer
x = 33,309.90
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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.