Finding the Fourth Proportional to 74,048.36, 110,971.88 and 31,318.26
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Solution
The fourth proportional to 74,048.36, 110,971.88 and 31,318.26 is: 46,934.82
Step by Step Solution
- Step 1: Write the proportion equation
74,048.36 : 110,971.88 = 31,318.26 : x - Step 2: Convert to fraction form
74,048.36/110,971.88 = 31,318.26/x - Step 3: Cross multiply
74,048.36x = 110,971.88 × 31,318.26 - Step 4: Simplify right side
74,048.36x = 3,475,446,190.53 - Step 5: Solve for x
x = 3,475,446,190.53/74,048.36 - Step 6: Final answer
x = 46,934.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.