Finding the Fourth Proportional to 81,941.73, 122,825.11 and 58,497.09
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Solution
The fourth proportional to 81,941.73, 122,825.11 and 58,497.09 is: 87,683.18
Step by Step Solution
- Step 1: Write the proportion equation
81,941.73 : 122,825.11 = 58,497.09 : x - Step 2: Convert to fraction form
81,941.73/122,825.11 = 58,497.09/x - Step 3: Cross multiply
81,941.73x = 122,825.11 × 58,497.09 - Step 4: Simplify right side
81,941.73x = 7,184,911,016.78 - Step 5: Solve for x
x = 7,184,911,016.78/81,941.73 - Step 6: Final answer
x = 87,683.18
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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.