Finding the Fourth Proportional to 86,673.70, 130,010.55 and 47,307.70
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Solution
The fourth proportional to 86,673.70, 130,010.55 and 47,307.70 is: 70,961.55
Step by Step Solution
- Step 1: Write the proportion equation
86,673.70 : 130,010.55 = 47,307.70 : x - Step 2: Convert to fraction form
86,673.70/130,010.55 = 47,307.70/x - Step 3: Cross multiply
86,673.70x = 130,010.55 × 47,307.70 - Step 4: Simplify right side
86,673.70x = 6,150,500,096.24 - Step 5: Solve for x
x = 6,150,500,096.24/86,673.70 - Step 6: Final answer
x = 70,961.55
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1.5x scale
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.