Finding the Fourth Proportional to 97,879.08, 146,840.50 and 31,323.20
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Solution
The fourth proportional to 97,879.08, 146,840.50 and 31,323.20 is: 46,991.80
Step by Step Solution
- Step 1: Write the proportion equation
97,879.08 : 146,840.50 = 31,323.20 : x - Step 2: Convert to fraction form
97,879.08/146,840.50 = 31,323.20/x - Step 3: Cross multiply
97,879.08x = 146,840.50 × 31,323.20 - Step 4: Simplify right side
97,879.08x = 4,599,514,349.60 - Step 5: Solve for x
x = 4,599,514,349.60/97,879.08 - Step 6: Final answer
x = 46,991.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.