Finding the Fourth Proportional to 77,392.13, 106,768.26 and 47,173.23
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Solution
The fourth proportional to 77,392.13, 106,768.26 and 47,173.23 is: 65,079.02
Step by Step Solution
- Step 1: Write the proportion equation
77,392.13 : 106,768.26 = 47,173.23 : x - Step 2: Convert to fraction form
77,392.13/106,768.26 = 47,173.23/x - Step 3: Cross multiply
77,392.13x = 106,768.26 × 47,173.23 - Step 4: Simplify right side
77,392.13x = 5,036,603,685.68 - Step 5: Solve for x
x = 5,036,603,685.68/77,392.13 - Step 6: Final answer
x = 65,079.02
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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.