Finding the Fourth Proportional to 76,701.28, 115,056.88 and 24,112.80
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Solution
The fourth proportional to 76,701.28, 115,056.88 and 24,112.80 is: 36,170.76
Step by Step Solution
- Step 1: Write the proportion equation
76,701.28 : 115,056.88 = 24,112.80 : x - Step 2: Convert to fraction form
76,701.28/115,056.88 = 24,112.80/x - Step 3: Cross multiply
76,701.28x = 115,056.88 × 24,112.80 - Step 4: Simplify right side
76,701.28x = 2,774,343,536.06 - Step 5: Solve for x
x = 2,774,343,536.06/76,701.28 - Step 6: Final answer
x = 36,170.76
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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.