Finding the Fourth Proportional to 87,738.93, 121,027.77 and 53,762.67
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Solution
The fourth proportional to 87,738.93, 121,027.77 and 53,762.67 is: 74,160.65
Step by Step Solution
- Step 1: Write the proportion equation
87,738.93 : 121,027.77 = 53,762.67 : x - Step 2: Convert to fraction form
87,738.93/121,027.77 = 53,762.67/x - Step 3: Cross multiply
87,738.93x = 121,027.77 × 53,762.67 - Step 4: Simplify right side
87,738.93x = 6,506,776,059.35 - Step 5: Solve for x
x = 6,506,776,059.35/87,738.93 - Step 6: Final answer
x = 74,160.65
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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.