Finding the Fourth Proportional to 87,707.74, 121,027.35 and 51,899.26
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Solution
The fourth proportional to 87,707.74, 121,027.35 and 51,899.26 is: 71,615.46
Step by Step Solution
- Step 1: Write the proportion equation
87,707.74 : 121,027.35 = 51,899.26 : x - Step 2: Convert to fraction form
87,707.74/121,027.35 = 51,899.26/x - Step 3: Cross multiply
87,707.74x = 121,027.35 × 51,899.26 - Step 4: Simplify right side
87,707.74x = 6,281,229,904.76 - Step 5: Solve for x
x = 6,281,229,904.76/87,707.74 - Step 6: Final answer
x = 71,615.46
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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.