Finding the Fourth Proportional to 87,962.08, 121,387.19 and 47,675.42
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Solution
The fourth proportional to 87,962.08, 121,387.19 and 47,675.42 is: 65,791.81
Step by Step Solution
- Step 1: Write the proportion equation
87,962.08 : 121,387.19 = 47,675.42 : x - Step 2: Convert to fraction form
87,962.08/121,387.19 = 47,675.42/x - Step 3: Cross multiply
87,962.08x = 121,387.19 × 47,675.42 - Step 4: Simplify right side
87,962.08x = 5,787,184,658.93 - Step 5: Solve for x
x = 5,787,184,658.93/87,962.08 - Step 6: Final answer
x = 65,791.81
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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.