Finding the Fourth Proportional to 89,894.48, 134,631.66 and 71,048.08
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Solution
The fourth proportional to 89,894.48, 134,631.66 and 71,048.08 is: 106,406.09
Step by Step Solution
- Step 1: Write the proportion equation
89,894.48 : 134,631.66 = 71,048.08 : x - Step 2: Convert to fraction form
89,894.48/134,631.66 = 71,048.08/x - Step 3: Cross multiply
89,894.48x = 134,631.66 × 71,048.08 - Step 4: Simplify right side
89,894.48x = 9,565,320,277.05 - Step 5: Solve for x
x = 9,565,320,277.05/89,894.48 - Step 6: Final answer
x = 106,406.09
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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.