Finding the Fourth Proportional to 84,878.88, 127,319.04 and 25,719.18
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Solution
The fourth proportional to 84,878.88, 127,319.04 and 25,719.18 is: 38,578.99
Step by Step Solution
- Step 1: Write the proportion equation
84,878.88 : 127,319.04 = 25,719.18 : x - Step 2: Convert to fraction form
84,878.88/127,319.04 = 25,719.18/x - Step 3: Cross multiply
84,878.88x = 127,319.04 × 25,719.18 - Step 4: Simplify right side
84,878.88x = 3,274,541,307.19 - Step 5: Solve for x
x = 3,274,541,307.19/84,878.88 - Step 6: Final answer
x = 38,578.99
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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.