Finding the Fourth Proportional to 101,043.13, 139,470.12 and 58,612.09
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Solution
The fourth proportional to 101,043.13, 139,470.12 and 58,612.09 is: 80,902.43
Step by Step Solution
- Step 1: Write the proportion equation
101,043.13 : 139,470.12 = 58,612.09 : x - Step 2: Convert to fraction form
101,043.13/139,470.12 = 58,612.09/x - Step 3: Cross multiply
101,043.13x = 139,470.12 × 58,612.09 - Step 4: Simplify right side
101,043.13x = 8,174,635,225.75 - Step 5: Solve for x
x = 8,174,635,225.75/101,043.13 - Step 6: Final answer
x = 80,902.43
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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.