Finding the Fourth Proportional to 87,791.04, 121,152.71 and 53,325.95
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Solution
The fourth proportional to 87,791.04, 121,152.71 and 53,325.95 is: 73,590.46
Step by Step Solution
- Step 1: Write the proportion equation
87,791.04 : 121,152.71 = 53,325.95 : x - Step 2: Convert to fraction form
87,791.04/121,152.71 = 53,325.95/x - Step 3: Cross multiply
87,791.04x = 121,152.71 × 53,325.95 - Step 4: Simplify right side
87,791.04x = 6,460,582,883.38 - Step 5: Solve for x
x = 6,460,582,883.38/87,791.04 - Step 6: Final answer
x = 73,590.46
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1.5x scale
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.