Finding the Fourth Proportional to 74,235.39, 102,491.55 and 51,567.09
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Solution
The fourth proportional to 74,235.39, 102,491.55 and 51,567.09 is: 71,195.03
Step by Step Solution
- Step 1: Write the proportion equation
74,235.39 : 102,491.55 = 51,567.09 : x - Step 2: Convert to fraction form
74,235.39/102,491.55 = 51,567.09/x - Step 3: Cross multiply
74,235.39x = 102,491.55 × 51,567.09 - Step 4: Simplify right side
74,235.39x = 5,285,190,983.09 - Step 5: Solve for x
x = 5,285,190,983.09/74,235.39 - Step 6: Final answer
x = 71,195.03
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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.