Finding the Fourth Proportional to 75,228.49, 112,763.19 and 27,813.13
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Solution
The fourth proportional to 75,228.49, 112,763.19 and 27,813.13 is: 41,690.28
Step by Step Solution
- Step 1: Write the proportion equation
75,228.49 : 112,763.19 = 27,813.13 : x - Step 2: Convert to fraction form
75,228.49/112,763.19 = 27,813.13/x - Step 3: Cross multiply
75,228.49x = 112,763.19 × 27,813.13 - Step 4: Simplify right side
75,228.49x = 3,136,297,085.08 - Step 5: Solve for x
x = 3,136,297,085.08/75,228.49 - Step 6: Final answer
x = 41,690.28
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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.