Finding the Fourth Proportional to 98,828.21, 136,382.99 and 53,506.19
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Solution
The fourth proportional to 98,828.21, 136,382.99 and 53,506.19 is: 73,838.57
Step by Step Solution
- Step 1: Write the proportion equation
98,828.21 : 136,382.99 = 53,506.19 : x - Step 2: Convert to fraction form
98,828.21/136,382.99 = 53,506.19/x - Step 3: Cross multiply
98,828.21x = 136,382.99 × 53,506.19 - Step 4: Simplify right side
98,828.21x = 7,297,334,249.13 - Step 5: Solve for x
x = 7,297,334,249.13/98,828.21 - Step 6: Final answer
x = 73,838.57
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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.