Finding the Fourth Proportional to 78,417.23, 117,630.34 and 22,252.95
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Solution
The fourth proportional to 78,417.23, 117,630.34 and 22,252.95 is: 33,380.70
Step by Step Solution
- Step 1: Write the proportion equation
78,417.23 : 117,630.34 = 22,252.95 : x - Step 2: Convert to fraction form
78,417.23/117,630.34 = 22,252.95/x - Step 3: Cross multiply
78,417.23x = 117,630.34 × 22,252.95 - Step 4: Simplify right side
78,417.23x = 2,617,622,018.87 - Step 5: Solve for x
x = 2,617,622,018.87/78,417.23 - Step 6: Final answer
x = 33,380.70
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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.