Finding the Fourth Proportional to 84,406.64, 126,672.21 and 40,033.53
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Solution
The fourth proportional to 84,406.64, 126,672.21 and 40,033.53 is: 60,079.82
Step by Step Solution
- Step 1: Write the proportion equation
84,406.64 : 126,672.21 = 40,033.53 : x - Step 2: Convert to fraction form
84,406.64/126,672.21 = 40,033.53/x - Step 3: Cross multiply
84,406.64x = 126,672.21 × 40,033.53 - Step 4: Simplify right side
84,406.64x = 5,071,135,719.20 - Step 5: Solve for x
x = 5,071,135,719.20/84,406.64 - Step 6: Final answer
x = 60,079.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.