Finding the Fourth Proportional to 87,656.06, 120,965.36 and 47,369.84
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Solution
The fourth proportional to 87,656.06, 120,965.36 and 47,369.84 is: 65,370.38
Step by Step Solution
- Step 1: Write the proportion equation
87,656.06 : 120,965.36 = 47,369.84 : x - Step 2: Convert to fraction form
87,656.06/120,965.36 = 47,369.84/x - Step 3: Cross multiply
87,656.06x = 120,965.36 × 47,369.84 - Step 4: Simplify right side
87,656.06x = 5,730,109,748.74 - Step 5: Solve for x
x = 5,730,109,748.74/87,656.06 - Step 6: Final answer
x = 65,370.38
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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.