Finding the Fourth Proportional to 76,812.68, 115,239.95 and 23,503.50
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Solution
The fourth proportional to 76,812.68, 115,239.95 and 23,503.50 is: 35,261.65
Step by Step Solution
- Step 1: Write the proportion equation
76,812.68 : 115,239.95 = 23,503.50 : x - Step 2: Convert to fraction form
76,812.68/115,239.95 = 23,503.50/x - Step 3: Cross multiply
76,812.68x = 115,239.95 × 23,503.50 - Step 4: Simplify right side
76,812.68x = 2,708,542,164.83 - Step 5: Solve for x
x = 2,708,542,164.83/76,812.68 - Step 6: Final answer
x = 35,261.65
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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.