Finding the Fourth Proportional to 76,125.58, 114,180.16 and 19,971.31
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Solution
The fourth proportional to 76,125.58, 114,180.16 and 19,971.31 is: 29,954.81
Step by Step Solution
- Step 1: Write the proportion equation
76,125.58 : 114,180.16 = 19,971.31 : x - Step 2: Convert to fraction form
76,125.58/114,180.16 = 19,971.31/x - Step 3: Cross multiply
76,125.58x = 114,180.16 × 19,971.31 - Step 4: Simplify right side
76,125.58x = 2,280,327,371.21 - Step 5: Solve for x
x = 2,280,327,371.21/76,125.58 - Step 6: Final answer
x = 29,954.81
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1.5x scale
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.