Finding the Fourth Proportional to 75,690.74, 104,453.25 and 43,878.08
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Solution
The fourth proportional to 75,690.74, 104,453.25 and 43,878.08 is: 60,551.77
Step by Step Solution
- Step 1: Write the proportion equation
75,690.74 : 104,453.25 = 43,878.08 : x - Step 2: Convert to fraction form
75,690.74/104,453.25 = 43,878.08/x - Step 3: Cross multiply
75,690.74x = 104,453.25 × 43,878.08 - Step 4: Simplify right side
75,690.74x = 4,583,208,059.76 - Step 5: Solve for x
x = 4,583,208,059.76/75,690.74 - Step 6: Final answer
x = 60,551.77
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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.