Finding the Fourth Proportional to 75,918.96, 104,743.80 and 42,378.48
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Solution
The fourth proportional to 75,918.96, 104,743.80 and 42,378.48 is: 58,468.70
Step by Step Solution
- Step 1: Write the proportion equation
75,918.96 : 104,743.80 = 42,378.48 : x - Step 2: Convert to fraction form
75,918.96/104,743.80 = 42,378.48/x - Step 3: Cross multiply
75,918.96x = 104,743.80 × 42,378.48 - Step 4: Simplify right side
75,918.96x = 4,438,883,033.42 - Step 5: Solve for x
x = 4,438,883,033.42/75,918.96 - Step 6: Final answer
x = 58,468.70
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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.