Finding the Fourth Proportional to 77,747.03, 107,291.35 and 43,756.19
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Solution
The fourth proportional to 77,747.03, 107,291.35 and 43,756.19 is: 60,383.79
Step by Step Solution
- Step 1: Write the proportion equation
77,747.03 : 107,291.35 = 43,756.19 : x - Step 2: Convert to fraction form
77,747.03/107,291.35 = 43,756.19/x - Step 3: Cross multiply
77,747.03x = 107,291.35 × 43,756.19 - Step 4: Simplify right side
77,747.03x = 4,694,660,695.96 - Step 5: Solve for x
x = 4,694,660,695.96/77,747.03 - Step 6: Final answer
x = 60,383.79
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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.