Finding the Fourth Proportional to 81,812.44, 122,784.50 and 46,295.48
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Solution
The fourth proportional to 81,812.44, 122,784.50 and 46,295.48 is: 69,480.48
Step by Step Solution
- Step 1: Write the proportion equation
81,812.44 : 122,784.50 = 46,295.48 : x - Step 2: Convert to fraction form
81,812.44/122,784.50 = 46,295.48/x - Step 3: Cross multiply
81,812.44x = 122,784.50 × 46,295.48 - Step 4: Simplify right side
81,812.44x = 5,684,367,364.06 - Step 5: Solve for x
x = 5,684,367,364.06/81,812.44 - Step 6: Final answer
x = 69,480.48
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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.