Finding the Fourth Proportional to 74,683.10, 102,993.42 and 54,508.02
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Solution
The fourth proportional to 74,683.10, 102,993.42 and 54,508.02 is: 75,170.52
Step by Step Solution
- Step 1: Write the proportion equation
74,683.10 : 102,993.42 = 54,508.02 : x - Step 2: Convert to fraction form
74,683.10/102,993.42 = 54,508.02/x - Step 3: Cross multiply
74,683.10x = 102,993.42 × 54,508.02 - Step 4: Simplify right side
74,683.10x = 5,613,967,397.23 - Step 5: Solve for x
x = 5,613,967,397.23/74,683.10 - Step 6: Final answer
x = 75,170.52
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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.