Finding the Fourth Proportional to 78,044.44, 107,700.48 and 42,233.68
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Solution
The fourth proportional to 78,044.44, 107,700.48 and 42,233.68 is: 58,282.02
Step by Step Solution
- Step 1: Write the proportion equation
78,044.44 : 107,700.48 = 42,233.68 : x - Step 2: Convert to fraction form
78,044.44/107,700.48 = 42,233.68/x - Step 3: Cross multiply
78,044.44x = 107,700.48 × 42,233.68 - Step 4: Simplify right side
78,044.44x = 4,548,587,608.17 - Step 5: Solve for x
x = 4,548,587,608.17/78,044.44 - Step 6: Final answer
x = 58,282.02
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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.