Finding the Fourth Proportional to 87,953.03, 121,376.64 and 47,668.08
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Solution
The fourth proportional to 87,953.03, 121,376.64 and 47,668.08 is: 65,782.74
Step by Step Solution
- Step 1: Write the proportion equation
87,953.03 : 121,376.64 = 47,668.08 : x - Step 2: Convert to fraction form
87,953.03/121,376.64 = 47,668.08/x - Step 3: Cross multiply
87,953.03x = 121,376.64 × 47,668.08 - Step 4: Simplify right side
87,953.03x = 5,785,791,385.65 - Step 5: Solve for x
x = 5,785,791,385.65/87,953.03 - Step 6: Final answer
x = 65,782.74
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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.