Finding the Fourth Proportional to 74,319.60, 111,496.43 and 32,206.75
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Solution
The fourth proportional to 74,319.60, 111,496.43 and 32,206.75 is: 48,317.50
Step by Step Solution
- Step 1: Write the proportion equation
74,319.60 : 111,496.43 = 32,206.75 : x - Step 2: Convert to fraction form
74,319.60/111,496.43 = 32,206.75/x - Step 3: Cross multiply
74,319.60x = 111,496.43 × 32,206.75 - Step 4: Simplify right side
74,319.60x = 3,590,937,566.39 - Step 5: Solve for x
x = 3,590,937,566.39/74,319.60 - Step 6: Final answer
x = 48,317.50
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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.