Finding the Fourth Proportional to 87,707.33, 121,036.11 and 47,421.08
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Solution
The fourth proportional to 87,707.33, 121,036.11 and 47,421.08 is: 65,441.09
Step by Step Solution
- Step 1: Write the proportion equation
87,707.33 : 121,036.11 = 47,421.08 : x - Step 2: Convert to fraction form
87,707.33/121,036.11 = 47,421.08/x - Step 3: Cross multiply
87,707.33x = 121,036.11 × 47,421.08 - Step 4: Simplify right side
87,707.33x = 5,739,663,055.20 - Step 5: Solve for x
x = 5,739,663,055.20/87,707.33 - Step 6: Final answer
x = 65,441.09
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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.