Finding the Fourth Proportional to 75,070.56, 112,609.08 and 28,327.08
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Solution
The fourth proportional to 75,070.56, 112,609.08 and 28,327.08 is: 42,491.84
Step by Step Solution
- Step 1: Write the proportion equation
75,070.56 : 112,609.08 = 28,327.08 : x - Step 2: Convert to fraction form
75,070.56/112,609.08 = 28,327.08/x - Step 3: Cross multiply
75,070.56x = 112,609.08 × 28,327.08 - Step 4: Simplify right side
75,070.56x = 3,189,886,417.89 - Step 5: Solve for x
x = 3,189,886,417.89/75,070.56 - Step 6: Final answer
x = 42,491.84
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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.