Finding the Fourth Proportional to 85,158.19, 117,518.33 and 49,368.99
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Solution
The fourth proportional to 85,158.19, 117,518.33 and 49,368.99 is: 68,129.22
Step by Step Solution
- Step 1: Write the proportion equation
85,158.19 : 117,518.33 = 49,368.99 : x - Step 2: Convert to fraction form
85,158.19/117,518.33 = 49,368.99/x - Step 3: Cross multiply
85,158.19x = 117,518.33 × 49,368.99 - Step 4: Simplify right side
85,158.19x = 5,801,761,011.74 - Step 5: Solve for x
x = 5,801,761,011.74/85,158.19 - Step 6: Final answer
x = 68,129.22
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.