Finding the Fourth Proportional to 78,507.58, 117,758.62 and 22,347.99
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Solution
The fourth proportional to 78,507.58, 117,758.62 and 22,347.99 is: 33,521.20
Step by Step Solution
- Step 1: Write the proportion equation
78,507.58 : 117,758.62 = 22,347.99 : x - Step 2: Convert to fraction form
78,507.58/117,758.62 = 22,347.99/x - Step 3: Cross multiply
78,507.58x = 117,758.62 × 22,347.99 - Step 4: Simplify right side
78,507.58x = 2,631,668,462.17 - Step 5: Solve for x
x = 2,631,668,462.17/78,507.58 - Step 6: Final answer
x = 33,521.20
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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.