Finding the Fourth Proportional to 75,077.08, 112,648.62 and 28,319.02
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Solution
The fourth proportional to 75,077.08, 112,648.62 and 28,319.02 is: 42,490.98
Step by Step Solution
- Step 1: Write the proportion equation
75,077.08 : 112,648.62 = 28,319.02 : x - Step 2: Convert to fraction form
75,077.08/112,648.62 = 28,319.02/x - Step 3: Cross multiply
75,077.08x = 112,648.62 × 28,319.02 - Step 4: Simplify right side
75,077.08x = 3,190,098,522.75 - Step 5: Solve for x
x = 3,190,098,522.75/75,077.08 - Step 6: Final answer
x = 42,490.98
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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.