Finding the Fourth Proportional to 87,283.49, 130,803.21 and 47,215.98
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Solution
The fourth proportional to 87,283.49, 130,803.21 and 47,215.98 is: 70,757.96
Step by Step Solution
- Step 1: Write the proportion equation
87,283.49 : 130,803.21 = 47,215.98 : x - Step 2: Convert to fraction form
87,283.49/130,803.21 = 47,215.98/x - Step 3: Cross multiply
87,283.49x = 130,803.21 × 47,215.98 - Step 4: Simplify right side
87,283.49x = 6,176,001,747.30 - Step 5: Solve for x
x = 6,176,001,747.30/87,283.49 - Step 6: Final answer
x = 70,757.96
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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.