Finding the Fourth Proportional to 77,744.52, 107,292.87 and 43,756.26
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Solution
The fourth proportional to 77,744.52, 107,292.87 and 43,756.26 is: 60,386.70
Step by Step Solution
- Step 1: Write the proportion equation
77,744.52 : 107,292.87 = 43,756.26 : x - Step 2: Convert to fraction form
77,744.52/107,292.87 = 43,756.26/x - Step 3: Cross multiply
77,744.52x = 107,292.87 × 43,756.26 - Step 4: Simplify right side
77,744.52x = 4,694,734,715.87 - Step 5: Solve for x
x = 4,694,734,715.87/77,744.52 - Step 6: Final answer
x = 60,386.70
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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.