Finding the Fourth Proportional to 77,290.19, 106,660.46 and 43,756.19
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Solution
The fourth proportional to 77,290.19, 106,660.46 and 43,756.19 is: 60,383.54
Step by Step Solution
- Step 1: Write the proportion equation
77,290.19 : 106,660.46 = 43,756.19 : x - Step 2: Convert to fraction form
77,290.19/106,660.46 = 43,756.19/x - Step 3: Cross multiply
77,290.19x = 106,660.46 × 43,756.19 - Step 4: Simplify right side
77,290.19x = 4,667,055,353.25 - Step 5: Solve for x
x = 4,667,055,353.25/77,290.19 - Step 6: Final answer
x = 60,383.54
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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.