Finding the Fourth Proportional to 79,028.13, 118,541.93 and 28,427.08
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Solution
The fourth proportional to 79,028.13, 118,541.93 and 28,427.08 is: 42,640.52
Step by Step Solution
- Step 1: Write the proportion equation
79,028.13 : 118,541.93 = 28,427.08 : x - Step 2: Convert to fraction form
79,028.13/118,541.93 = 28,427.08/x - Step 3: Cross multiply
79,028.13x = 118,541.93 × 28,427.08 - Step 4: Simplify right side
79,028.13x = 3,369,800,537.74 - Step 5: Solve for x
x = 3,369,800,537.74/79,028.13 - Step 6: Final answer
x = 42,640.52
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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.