Finding the Fourth Proportional to 96,985.30, 145,630.96 and 57,717.68
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Solution
The fourth proportional to 96,985.30, 145,630.96 and 57,717.68 is: 86,667.58
Step by Step Solution
- Step 1: Write the proportion equation
96,985.30 : 145,630.96 = 57,717.68 : x - Step 2: Convert to fraction form
96,985.30/145,630.96 = 57,717.68/x - Step 3: Cross multiply
96,985.30x = 145,630.96 × 57,717.68 - Step 4: Simplify right side
96,985.30x = 8,405,481,147.37 - Step 5: Solve for x
x = 8,405,481,147.37/96,985.30 - Step 6: Final answer
x = 86,667.58
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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.