Finding the Fourth Proportional to 75,585.60, 104,319.36 and 43,755.84
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Solution
The fourth proportional to 75,585.60, 104,319.36 and 43,755.84 is: 60,389.56
Step by Step Solution
- Step 1: Write the proportion equation
75,585.60 : 104,319.36 = 43,755.84 : x - Step 2: Convert to fraction form
75,585.60/104,319.36 = 43,755.84/x - Step 3: Cross multiply
75,585.60x = 104,319.36 × 43,755.84 - Step 4: Simplify right side
75,585.60x = 4,564,581,225.06 - Step 5: Solve for x
x = 4,564,581,225.06/75,585.60 - Step 6: Final answer
x = 60,389.56
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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.