Finding the Fourth Proportional to 76,461.84, 114,708.71 and 38,532.44
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Solution
The fourth proportional to 76,461.84, 114,708.71 and 38,532.44 is: 57,806.70
Step by Step Solution
- Step 1: Write the proportion equation
76,461.84 : 114,708.71 = 38,532.44 : x - Step 2: Convert to fraction form
76,461.84/114,708.71 = 38,532.44/x - Step 3: Cross multiply
76,461.84x = 114,708.71 × 38,532.44 - Step 4: Simplify right side
76,461.84x = 4,420,006,485.55 - Step 5: Solve for x
x = 4,420,006,485.55/76,461.84 - Step 6: Final answer
x = 57,806.70
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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.