Finding the Fourth Proportional to 73,992.30, 110,927.70 and 31,904.70
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Solution
The fourth proportional to 73,992.30, 110,927.70 and 31,904.70 is: 47,830.86
Step by Step Solution
- Step 1: Write the proportion equation
73,992.30 : 110,927.70 = 31,904.70 : x - Step 2: Convert to fraction form
73,992.30/110,927.70 = 31,904.70/x - Step 3: Cross multiply
73,992.30x = 110,927.70 × 31,904.70 - Step 4: Simplify right side
73,992.30x = 3,539,114,990.19 - Step 5: Solve for x
x = 3,539,114,990.19/73,992.30 - Step 6: Final answer
x = 47,830.86
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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.