Finding the Fourth Proportional to 74,770.04, 103,181.36 and 40,778.79
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Solution
The fourth proportional to 74,770.04, 103,181.36 and 40,778.79 is: 56,274.02
Step by Step Solution
- Step 1: Write the proportion equation
74,770.04 : 103,181.36 = 40,778.79 : x - Step 2: Convert to fraction form
74,770.04/103,181.36 = 40,778.79/x - Step 3: Cross multiply
74,770.04x = 103,181.36 × 40,778.79 - Step 4: Simplify right side
74,770.04x = 4,207,610,807.46 - Step 5: Solve for x
x = 4,207,610,807.46/74,770.04 - Step 6: Final answer
x = 56,274.02
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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.