Finding the Fourth Proportional to 74,195.35, 102,425.06 and 42,358.11
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Solution
The fourth proportional to 74,195.35, 102,425.06 and 42,358.11 is: 58,474.45
Step by Step Solution
- Step 1: Write the proportion equation
74,195.35 : 102,425.06 = 42,358.11 : x - Step 2: Convert to fraction form
74,195.35/102,425.06 = 42,358.11/x - Step 3: Cross multiply
74,195.35x = 102,425.06 × 42,358.11 - Step 4: Simplify right side
74,195.35x = 4,338,531,958.24 - Step 5: Solve for x
x = 4,338,531,958.24/74,195.35 - Step 6: Final answer
x = 58,474.45
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1.5x scale
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.