Finding the Fourth Proportional to 87,652.11, 120,968.42 and 51,853.65
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Solution
The fourth proportional to 87,652.11, 120,968.42 and 51,853.65 is: 71,563.07
Step by Step Solution
- Step 1: Write the proportion equation
87,652.11 : 120,968.42 = 51,853.65 : x - Step 2: Convert to fraction form
87,652.11/120,968.42 = 51,853.65/x - Step 3: Cross multiply
87,652.11x = 120,968.42 × 51,853.65 - Step 4: Simplify right side
87,652.11x = 6,272,654,111.73 - Step 5: Solve for x
x = 6,272,654,111.73/87,652.11 - Step 6: Final answer
x = 71,563.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.