Finding the Fourth Proportional to 72,683.64, 108,914.17 and 48,903.09
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Solution
The fourth proportional to 72,683.64, 108,914.17 and 48,903.09 is: 73,279.76
Step by Step Solution
- Step 1: Write the proportion equation
72,683.64 : 108,914.17 = 48,903.09 : x - Step 2: Convert to fraction form
72,683.64/108,914.17 = 48,903.09/x - Step 3: Cross multiply
72,683.64x = 108,914.17 × 48,903.09 - Step 4: Simplify right side
72,683.64x = 5,326,239,631.43 - Step 5: Solve for x
x = 5,326,239,631.43/72,683.64 - Step 6: Final answer
x = 73,279.76
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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.