Finding the Fourth Proportional to 75,320.99, 103,938.48 and 43,059.09
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Solution
The fourth proportional to 75,320.99, 103,938.48 and 43,059.09 is: 59,418.98
Step by Step Solution
- Step 1: Write the proportion equation
75,320.99 : 103,938.48 = 43,059.09 : x - Step 2: Convert to fraction form
75,320.99/103,938.48 = 43,059.09/x - Step 3: Cross multiply
75,320.99x = 103,938.48 × 43,059.09 - Step 4: Simplify right side
75,320.99x = 4,475,496,364.78 - Step 5: Solve for x
x = 4,475,496,364.78/75,320.99 - Step 6: Final answer
x = 59,418.98
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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.