Finding the Fourth Proportional to 76,903.76, 106,134.50 and 46,682.14
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Solution
The fourth proportional to 76,903.76, 106,134.50 and 46,682.14 is: 64,425.79
Step by Step Solution
- Step 1: Write the proportion equation
76,903.76 : 106,134.50 = 46,682.14 : x - Step 2: Convert to fraction form
76,903.76/106,134.50 = 46,682.14/x - Step 3: Cross multiply
76,903.76x = 106,134.50 × 46,682.14 - Step 4: Simplify right side
76,903.76x = 4,954,585,587.83 - Step 5: Solve for x
x = 4,954,585,587.83/76,903.76 - Step 6: Final answer
x = 64,425.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.