Finding the Fourth Proportional to 98,409.48, 135,822.48 and 58,120.56
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Solution
The fourth proportional to 98,409.48, 135,822.48 and 58,120.56 is: 80,216.65
Step by Step Solution
- Step 1: Write the proportion equation
98,409.48 : 135,822.48 = 58,120.56 : x - Step 2: Convert to fraction form
98,409.48/135,822.48 = 58,120.56/x - Step 3: Cross multiply
98,409.48x = 135,822.48 × 58,120.56 - Step 4: Simplify right side
98,409.48x = 7,894,078,598.19 - Step 5: Solve for x
x = 7,894,078,598.19/98,409.48 - Step 6: Final answer
x = 80,216.65
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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.