Finding the Fourth Proportional to 97,128.96, 145,676.43 and 27,013.74
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Solution
The fourth proportional to 97,128.96, 145,676.43 and 27,013.74 is: 40,515.88
Step by Step Solution
- Step 1: Write the proportion equation
97,128.96 : 145,676.43 = 27,013.74 : x - Step 2: Convert to fraction form
97,128.96/145,676.43 = 27,013.74/x - Step 3: Cross multiply
97,128.96x = 145,676.43 × 27,013.74 - Step 4: Simplify right side
97,128.96x = 3,935,265,204.15 - Step 5: Solve for x
x = 3,935,265,204.15/97,128.96 - Step 6: Final answer
x = 40,515.88
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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.