Finding the Fourth Proportional to 97,421.70, 146,132.55 and 31,757.70
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Solution
The fourth proportional to 97,421.70, 146,132.55 and 31,757.70 is: 47,636.55
Step by Step Solution
- Step 1: Write the proportion equation
97,421.70 : 146,132.55 = 31,757.70 : x - Step 2: Convert to fraction form
97,421.70/146,132.55 = 31,757.70/x - Step 3: Cross multiply
97,421.70x = 146,132.55 × 31,757.70 - Step 4: Simplify right side
97,421.70x = 4,640,833,683.14 - Step 5: Solve for x
x = 4,640,833,683.14/97,421.70 - Step 6: Final answer
x = 47,636.55
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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.