Finding the Fourth Proportional to 91,427.90, 137,196.33 and 40,822.99
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Solution
The fourth proportional to 91,427.90, 137,196.33 and 40,822.99 is: 61,258.81
Step by Step Solution
- Step 1: Write the proportion equation
91,427.90 : 137,196.33 = 40,822.99 : x - Step 2: Convert to fraction form
91,427.90/137,196.33 = 40,822.99/x - Step 3: Cross multiply
91,427.90x = 137,196.33 × 40,822.99 - Step 4: Simplify right side
91,427.90x = 5,600,764,407.63 - Step 5: Solve for x
x = 5,600,764,407.63/91,427.90 - Step 6: Final answer
x = 61,258.81
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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.