Finding the Fourth Proportional to 81,580.56, 122,371.26 and 37,177.17
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Solution
The fourth proportional to 81,580.56, 122,371.26 and 37,177.17 is: 55,765.95
Step by Step Solution
- Step 1: Write the proportion equation
81,580.56 : 122,371.26 = 37,177.17 : x - Step 2: Convert to fraction form
81,580.56/122,371.26 = 37,177.17/x - Step 3: Cross multiply
81,580.56x = 122,371.26 × 37,177.17 - Step 4: Simplify right side
81,580.56x = 4,549,417,136.13 - Step 5: Solve for x
x = 4,549,417,136.13/81,580.56 - Step 6: Final answer
x = 55,765.95
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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.