Finding the Fourth Proportional to 87,270.48, 130,800.06 and 39,820.68
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Solution
The fourth proportional to 87,270.48, 130,800.06 and 39,820.68 is: 59,682.81
Step by Step Solution
- Step 1: Write the proportion equation
87,270.48 : 130,800.06 = 39,820.68 : x - Step 2: Convert to fraction form
87,270.48/130,800.06 = 39,820.68/x - Step 3: Cross multiply
87,270.48x = 130,800.06 × 39,820.68 - Step 4: Simplify right side
87,270.48x = 5,208,547,333.24 - Step 5: Solve for x
x = 5,208,547,333.24/87,270.48 - Step 6: Final answer
x = 59,682.81
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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.