Finding the Fourth Proportional to 74,916.03, 112,378.36 and 28,169.31
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Solution
The fourth proportional to 74,916.03, 112,378.36 and 28,169.31 is: 42,255.59
Step by Step Solution
- Step 1: Write the proportion equation
74,916.03 : 112,378.36 = 28,169.31 : x - Step 2: Convert to fraction form
74,916.03/112,378.36 = 28,169.31/x - Step 3: Cross multiply
74,916.03x = 112,378.36 × 28,169.31 - Step 4: Simplify right side
74,916.03x = 3,165,620,860.13 - Step 5: Solve for x
x = 3,165,620,860.13/74,916.03 - Step 6: Final answer
x = 42,255.59
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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.